The Introduction of N-Methyl-N-nitro-N-nitrosoguanidine

 N-Methyl-N-nitro-N-nitrosoguanidine (MNNG) of the experimental animal (v. 4 international cancer research organization, in 1974, the 1987 international cancer research institutions seven) the carcinogenicity has enough evidence. N-methyl-N-nitro-N-and the nitro pill is in all the test species had carcinogenicity: mice, rats, hamster, rabbits and dog. In rat drinking water management, MNNG induction adenoma, adenocarcinoma, a few leiomyosarcoma, and in rat glandular stomach seal ring cell carcinoma. Additional malignant tumor, especially in high concentrations of observation, in the duodenum, jejunum and mesenteric, along with forestomach and liver cancer papilloma. When drinking water management, MNNG induction of leiomyosarcoma, the stomach wall of the cyst, neonatally graft into the subcutaneous tissue in mice. When drinking water management, MNNG induced gastric adenocarcinoma male hamster glands and sarcoma. Drinking water management, it causes four, study the dog gastric adenocarcinoma. The main part in the heart, and in the distal tumor local. When filling the drug stomach, MNNG induce squamous cell carcinoma and papilloma 63 male mice a single dose of the stomach;
In the study of the species used in the digestive tract of the tumors occur spontaneously is thought to be in very rare. When as a single high doses to fill the stomach medicine, composite induction rats glands and forestomach malignant tumors. When the management of a series of irregular stomach irrigation treatment, this compound induce squamous epithelium papilloma and squamous cell carcinoma of the two sexes in forestomach rat glandular stomach, liver and peritoneal tumors. When through the give subcutaneously, adult rats induced by injection parts of the composite fibrosarcoma and pleomorphism sarcoma. In a similar study, fibrosarcoma and leiomyosarcoma male rats induced by injection site. Newborn rat MNNG development adenocarcinoma, fibrosarcoma, and small intestine myosarcomas a single subcutaneous injection. A single subcutaneous injection of lung and liver caused by MNNG tumor and hemangioendotheliomas mice. When intraperitoneal injection to medicine, MNNG induction appendix, the ileum, in male mice jejunum benign and malignant tumors. By a single intraperitoneal injection to medicine, the compounds of induction male rats, and in lactation rats stomach and intestine carcinoma and sarcoma stomach, jejunum and caecum tumor. When rectum perfusion, this compound caused by one or more adenomatous polyps and seven nine rats in the colon and rectum polyp carcinoma. In the IARC working group without censorship, when local, male and female mice induced MNNG skin papilloma and carcinoma recent research.


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The Introduction of Azoxymethane

Azoxymethane is colon cancer's mouse and the big mouse's derivative, widely uses in exploring the prevention cancer's material and the material preparation colon cancer model cancer pathogenesis research. In addition, the anxiety which increases with the colon cancer, a antioncogenic material warmer discussion, takes role which this product acts. This product's mean dose is 15 milligrams/kilograms (body weight) approximately 3 week and the recessus stove (ACF) manages, once a week hypodermic injection several weeks later discovered. Azoxymethane (AOM) is one kind of strong effect carcinogen, uses in inducing the big mouse and the mouse colon cancer. 2,3 Azoxymethane induces carcinogenesis.1 the azoxymethane preventive treatment appraisal curative effect the research, and already in use, also often uses for to judge between other people's chemopreventative result, specially food, like undigestable sugars4,5, red meat6 and green tea7 in rodent model. These rodent model's result is helpful to the recognition possible precautionary approach, by human colon cancer.8 transformation growth factor Beta (TGF-β) the change or the unusual signal are developing and the AOM.9 treatment mouse's tumor examination, 10 azoxymethane treatment epidermis growth factor acceptor tyrosine activating enzyme activates intrinsic simultaneously stimulates synthesizes TGF- the alpha.11 epoxy synthase 2 (COX- 2) inhibitor NS - 398 (product to number N194) azoxymethane.12 to treat the big mouse cancer pre-cell's disease incidence rate to reduce.

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The Brief Introduction of 2,3-Diphospho-D-glyceric acid pentacyclohexylamine salt, 98%

2,3-Diphospho-D-glyceric acid pentacyclohexylamine salt, 98%‘s CAS is 62868-79-5.Molecular Formula is C10H11NO2.Molecular Weight is 177.1998,2,3-Diphospho-D-glyceric acid penta(cyclohexylammonium) salt; (2R)-2,3-bis(phosphonooxy)propanoic acid – cyclohexanamine (1:5).

In chemistry , the chemical substance is a substance with constant chemical composition and characteristics . It can not be divided into components, the physical separation method , which does not break chemical bonds . They can be solid, liquid or gas .

Chemicals commonly referred to as ‘ pure ‘ to make them in addition to the mixture. A common example is the pure water chemicals, it has the same nature and the same ratio of hydrogen and oxygen is isolated from the river or in a laboratory . Other common chemicals in a pure form of diamond , gold, salt , sugar and so on. However, the seemingly simple or pure substance of the material found in nature can actually be a mixture of chemical substances . For example , tap water may contain small amounts of dissolved compounds, sodium chloride , iron, calcium and other chemicals .

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What is 3-Bromophenol

3-Bromophenol  is working when is the right amount of bromine . If overdose is easy to react . But the resulting product is not tetrabromo phenol . But on the position of two phenolic hydroxyl bromine , has destroyed the conjugate structure of benzene . The color is pale yellow precipitate . If this happens , you can add potassium iodide to the reduction, to be Tribromophenol .
Health hazards : toxic manifestations of increased respiratory rate , breathing deeply , body tremors and sometimes convulsions and even death , can cause significant lung disease from mild to severe congestion and spotting , by mouth of the gastrointestinal tract irritation and corrosion .
Acute toxicity : LD50200mg/kg ( rat oral )
1.Hazardous characteristics : high fever by the decomposition of toxic gas bromide .
2.Combustion ( decomposition ) products : carbon monoxide , carbon dioxide, bromide .
3 .Emergency Monitoring Methods
4 .Laboratory monitoring methods
Uses : Preparation for disinfection antiseptic drug tribromophenol bismuth . Tribromophenol available aqueous solution polycondensation method or precipitation polymerization method as poly 2,6 – bromophenyl ether . This is a newly developed flame retardant , can be used for nylon 66 , thermoplastic polyester and modified polyphenylene ether and other engineering plastics can also be used for high impact polystyrene , ABS resin .


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What is 2,3-Diphospho-D-glyceric acid pentacyclohexylamine salt, 98%

 2,3-Diphospho-D-glyceric acid pentacyclohexylamine salt, 98%.CAS is 62868-79-5.Molecular Formula is C10H11NO2.Molecular Weight is 177.1998,2,3-Diphospho-D-glyceric acid penta(cyclohexylammonium) salt; (2R)-2,3-bis(phosphonooxy)propanoic acid – cyclohexanamine (1:5)

In chemistry , the chemical substance is a substance with constant chemical composition and characteristics . It can not be divided into components, the physical separation method , which does not break chemical bonds . They can be solid, liquid or gas .

Chemicals commonly referred to as ‘ pure ‘ to make them in addition to the mixture. A common example is the pure water chemicals, it has the same nature and the same ratio of hydrogen and oxygen is isolated from the river or in a laboratory . Other common chemicals in a pure form of diamond , gold, salt , sugar and so on. However, the seemingly simple or pure substance of the material found in nature can actually be a mixture of chemical substances . For example , tap water may contain small amounts of dissolved compounds, sodium chloride , iron, calcium and other chemicals .

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The Introduction of Hydroxyatrazine

Hydroxyatrazine Alias: 2-hydroxyl-4-(ph)-6-(isopropylamino)-S-three polybenzoxazines, hydroxydechloroatrazine, 4-(ph)-2-hydroxyl-6-(isopropylamino selectiely rebind triazines was high price to buy.
Formula: C8H15N5O
Molecular weight: 197.24 Dalton
A single isotope molecular weight: 197.1276601296 Dalton
IUPAC Name: 4-ethylamino-6-(propan-2-ylamino)-5H-1,3,5-triazin-2-one
Canonical SMILES: CCNC1=NC(=O)N=C(N1)NC(C)C
InChI: InChI=1/C8H15N5O/c1-4-9-6-11-7(10-5(2)3)13-8(14)12-6/h5H,4H2,1-3H3,(H3,
9,10,11,12,13,14)/f/h9-11H
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The Use of Bromofluoromethane

Bromofluoromethane is a soluble gas dissolved in alcohol and halomethane very chloroform .Soga standard molar is not the unity of 2.763 J / K ( hydrolysis ) and the heat capacity , CP (49.2 J / K hydrolysis ) .

 

So far it is prepared three ways prevailingly invalid:

1 . About fluoroacétique salts by using a Hunsdiecker II reaction.
Dibromofluoromethane

2. Reductive debromination of Swarts and a passive process .
3 . dihalomethane reaction of a halogenated or a halomethane exchange contributed to or bromine trifluoride ether .
The maximum yield of the reductive debromination with hydrogen dibromofluoromethane organotin.

Bromofluoromethane reactionary important raw materials, drugs and other chemicals . bromofluoromethane control the use of the potential of the ozone hole concentrations ( 0.73 ) . In its CH2Br18F no isotopomère use.

 

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The Introduction of 5-Aza-2,4-dihydroxypyrimidine

Product Name is 5-Aza-2,4-dihydroxypyrimidine.CAS is 71-33-0.Molecular Formula is C3H3N3O2.Molecular Weight is 113.0748.Description of 5-Aza-2,4-dihydroxypyrimidine is that 5-Azauracil; Allantoxaidin; Allantoxaidine; CCRIS 3442; NSC 56901; Oxaidin; 1,3,5-Triazine-2,4(1H,3H)-dione; s-Triazine-2,4(1H,3H)-dione (8CI).

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The Introduction of 5-Aza-2,4-dihydroxypyrimidine

Product Name is 5-Aza-2,4-dihydroxypyrimidine.CAS is 71-33-0.Molecular Formula is C3H3N3O2.Molecular Weight is 113.0748.Description of 5-Aza-2,4-dihydroxypyrimidine is that 5-Azauracil; Allantoxaidin; Allantoxaidine; CCRIS 3442; NSC 56901; Oxaidin; 1,3,5-Triazine-2,4(1H,3H)-dione; s-Triazine-2,4(1H,3H)-dione (8CI).

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The Introduction of 3-Bromophenol

3-Bromophenol was doing when is the right amount of bromine . If overdose is easy to react . But the resulting product is not tetrabromo phenol . But on the position of two phenolic hydroxyl bromine , has destroyed the conjugate structure of benzene . The color is pale yellow precipitate . If this happens , you can add potassium iodide to the reduction, to be Tribromophenol .

A health hazard

Pathways: inhalation , ingestion .
Health hazards : toxic manifestations of increased respiratory rate , breathing deeply , body tremors and sometimes convulsions and even death , can cause significant lung disease from mild to severe congestion and spotting , by mouth of the gastrointestinal tract irritation and corrosion .

Two , toxicology information and environmental behavior

Acute toxicity : LD50200mg/kg ( rat oral )
1Hazardous characteristics : high fever by the decomposition of toxic gas bromide .

2Combustion ( decomposition ) products : carbon monoxide , carbon dioxide, bromide .

3 Emergency Monitoring Methods

4 Laboratory monitoring methods

leakage contingency
Isolation leakage polluted area , located around the warning signs , cut off the fire source. Emergency personnel wearing gas masks , chemical protective clothing to wear . Do not direct contact with leakage , and clean the shovel collection in a dry clean covered containers , transported to the waste disposal sites. If large spills , recycling or collection of sound waste treatment .

 protective measures
Respiratory protection: possible exposure to toxins, should wear protective masks . Emergency rescue or evacuation , wear self -contained breathing apparatus .

Eye protection: Wear chemical safety glasses .

Uses : Preparation for disinfection antiseptic drug tribromophenol bismuth . Tribromophenol available aqueous solution polycondensation method or precipitation polymerization method as poly 2,6 - bromophenyl ether . This is a newly developed flame retardant , can be used for nylon 66 , thermoplastic polyester and modified polyphenylene ether and other engineering plastics can also be used for high impact polystyrene , ABS resin .

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The Introduction of 2,3-Diphospho-D-glyceric acid pentacyclohexylamine salt, 98%

Product Name is 2,3-Diphospho-D-glyceric acid pentacyclohexylamine salt, 98%.CAS is 62868-79-5.Molecular Formula is C10H11NO2.Molecular Weight is 177.1998,2,3-Diphospho-D-glyceric acid penta(cyclohexylammonium) salt; (2R)-2,3-bis(phosphonooxy)propanoic acid - cyclohexanamine (1:5)

In chemistry , the chemical substance is a substance with constant chemical composition and characteristics . It can not be divided into components, the physical separation method , which does not break chemical bonds . They can be solid, liquid or gas .

Chemicals commonly referred to as ' pure ' to make them in addition to the mixture. A common example is the pure water chemicals, it has the same nature and the same ratio of hydrogen and oxygen is isolated from the river or in a laboratory . Other common chemicals in a pure form of diamond , gold, salt , sugar and so on. However, the seemingly simple or pure substance of the material found in nature can actually be a mixture of chemical substances . For example , tap water may contain small amounts of dissolved compounds, sodium chloride , iron, calcium and other chemicals .

 

Read more: 2,3-Diphospho-D-glyceric acid pentacyclohexylamine salt, 98% for sale

The Introduction of Bromofluoromethane

Bromofluoromethane is a soluble gas dissolved in alcohol and halomethane very chloroform .Soga standard molar is not the unity of 2.763 J / K ( hydrolysis ) and the heat capacity , CP (49.2 J / K hydrolysis ) .

So far it is prepared three ways prevailingly invalid:

1 . About fluoroacétique salts by using a Hunsdiecker II reaction.
Dibromofluoromethane

2. Reductive debromination of Swarts and a passive process .
3 . dihalomethane reaction of a halogenated or a halomethane exchange contributed to or bromine trifluoride ether .
The maximum yield of the reductive debromination with hydrogen dibromofluoromethane organotin.

Bromofluoromethane reactionary important raw materials, drugs and other chemicals . bromofluoromethane control the use of the potential of the ozone hole concentrations ( 0.73 ) . In its CH2Br18F no isotopomère use.

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6-Methyl-imidazo[1,2-A]pyridine-3-acetic acid for sale

Product Name is 6 - methyl -imidazo [1,2 - a] pyridine --3-- acetate acid.CAS 101820 - 58 - 0.Molecular formula is C10H10N2O2.Molecular weight is 190.1986 . (6 - Methylimidazo [1,2 - A] pyridine-3 - yl ) acetic acid ; 6-- methyl- imidazo [1,2 - A] pyridine-3 - acetic acid ; imidazo [1,2 - A] pyridine - 3 - acetic acid , 6 - methyl - 2 - (6 methylimidazo [3,2 - A] pyridine-3 - yl ) acetic acid .

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Z-L-T-Butylglycine for sale

Product name is Z-L-T-Butylglycine . CAS is 62965-10-0-molecular formula is C14H19NO4, molecular weight is 265.305 describe L-valine, 3-methyl-N-[(phenylmethoxy) carbonyl]-N-[(Benzyloxy) carbonyl] 3-methyl-L-valine.

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4-Amino-5-(ethylsulfonyl)-2-methoxybenzoicacid for sale

Product Name:4-Amino-5-(ethylsulfonyl)-2-methoxybenzoicacid

CAS:71675-87-1

Molecular Formula:C10H13NO5S

Molecular Weight:259.27692

Description:2-methoxyl-4-amino-5-ethylsulfonylbenzoic acid; 4-Amino-5-ethylsulfonyl-2-methoxybenzoic acid

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3-Dimethylcarbamoyloxypyridine for sale

Product Name:3-Dimethylcarbamoyloxypyridine

CAS:101-26-8

Molecular Formula:C9H13N2O2Br

Molecular Weight:261.11842

Description:3-dimethylcarbamoyloxy-1-methylpyridinium bromide; Pyridostigmine Bromine

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3-(1-Pyrazolyl)-L-alanine for sale

Product Name:3-(1-Pyrazolyl)-L-alanine

CAS:2734-48-7

Molecular Formula:C6H9N3O2

Molecular Weight:155.15636

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4-Amino-5-(ethylsulfonyl)-2-methoxybenzoicacid for sale

Product Name:4-Amino-5-(ethylsulfonyl)-2-methoxybenzoicacid

CAS:71675-87-1

Molecular Formula:C10H13NO5S

Molecular Weight:259.27692

Description:2-methoxyl-4-amino-5-ethylsulfonylbenzoic acid; 4-Amino-5-ethylsulfonyl-2-methoxybenzoic acid

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3,5-Dibromobenzylcyanide for sale

Product Name:3,5-Dibromobenzylcyanide

CAS:71675-87-1

Molecular Formula:C8H5Br2N

Molecular Weight:274.94

Description: (3,5-Dibromophenyl)acetonitrile; benzeneacetonitrile, 3,5-dibromo-
 

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1,3-Bis(dimethylamino)-2-propanol for sale

Product Name:1,3-Bis(dimethylamino)-2-propanol

CAS:5966-51-8

Molecular Formula:C7H18N2O

Molecular Weight:146.23272

Description:2-Propanol, 1,3-bis(dimethylamino)-; 1,3-Bis(dimethylamino)-2-propanol; 4-04-00-01695 (Beilstein Handbook Reference); AI3-61598; BRN 1446002; 1,3-Bis(dimethylamino)propan-2-ol

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2-Bromo-dibenzofuran for sale

Product Name:2-Bromo-dibenzofuran
CAS:86-76-0
Molecular Formula:C12H7OBr
Molecular Weight:247.09098
Description:2-Bromodibenzofuran; NSC 1735


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3-Chloro-2,2-dichloromethylpropionicacid for Sale

Product Name:3-Chloro-2,2-dichloromethylpropionicacid
CAS:17831-70-8
Molecular Formula:C5H7O2Cl3
Molecular Weight:205.46838
Description:TRIS(CHLOROMETHYL)ACETIC ACID; 3-chloro-2,2-bis(chloromethyl)propanoic acid

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