ChemicalBook > CAS DataBase List > Pyrazinecarboxamide, 3-amino- (7CI,9CI)

Pyrazinecarboxamide, 3-amino- (7CI,9CI)

Product Name: Pyrazinecarboxamide, 3-amino- (7CI,9CI)
CAS No.: 32587-10-3
Chemical Name: Pyrazinecarboxamide, 3-amino- (7CI,9CI)
Synonyms: Aminopyrazine carboxamide;Pyrazinecarboxamide, 3-amino;3-amino-2-pyrazinecarboxamide;2-Pyrazinecarboxamide, 3-amino-;Pyrazinecarboxamide, 3-amino- (7CI,9CI);3-Amino-pyrazine-2-carboxylic acid amide
CBNumber: CB21051869
Molecular Formula: C5H6N4O
Formula Weight: 138.13
MOL File: 32587-10-3.mol

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Pyrazinecarboxamide, 3-amino- (7CI,9CI) Property

Melting point:: 239.3 °C
Boiling point:: 375.8±37.0 °C(Predicted)
Density: 1.426±0.06 g/cm3(Predicted)
storage temp.: 2-8°C(protect from light)
form: Solid
pka: 13.68±0.50(Predicted)
Appearance: Light brown to brown Solid
CAS DataBase Reference: 32587-10-3

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P304+P340IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P405Store locked up.

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N-Bromosuccinimide Price

TRC

Product number: A615668
Product name: 3-Aminopyrazine-2-carboxamide
Packaging: 500mg
Price: $175
Updated: 2021/12/16

Biosynth Carbosynth

Product number: FA139395
Product name: 3-Aminopyrazine-2-carboxamide
Packaging: 1g
Price: $81
Updated: 2021/12/16

Biosynth Carbosynth

Product number: FA139395
Product name: 3-Aminopyrazine-2-carboxamide
Packaging: 2g
Price: $141
Updated: 2021/12/16

American Custom Chemicals Corporation

Product number: CHM0076955
Product name: 3-AMINO-PYRAZINE-2-CARBOXYLIC ACID AMIDE
Purity: 95.00%
Packaging: 1G
Price: $262.5
Updated: 2021/12/16

Biosynth Carbosynth

Product number: FA139395
Product name: 3-Aminopyrazine-2-carboxamide
Packaging: 5G
Price: $282
Updated: 2021/12/16

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Pyrazinecarboxamide, 3-amino- (7CI,9CI) Chemical Properties,Usage,Production

Synthesis Reference(s)

Journal of the American Chemical Society, 81, p. 2472, 1959 DOI: 10.1021/ja01519a047

Synthesis

16298-03-6

32587-10-3

Example 2 Synthesis of 3-aminopyrazine-2-carboxamide (Intermediate 1): methyl 3-aminopyrazine-2-carboxylate (5.0 g, 33 mmol) was dissolved in concentrated ammonium hydroxide solution (30 mL), heated to 60°C and kept for 3 hours. After completion of the reaction, the mixture was cooled to room temperature and the precipitated solid was collected by filtration. The solid was washed well with water and ether in turn to afford the title compound 3-aminopyrazine-2-carboxamide as a brown solid (3.7 g, 82% yield). The product was characterized by 1H NMR (500 MHz, DMSO-d6): δ 8.19 (d, J = 2.4 Hz, 1H), 8.07 (br s, 2H), 7.80 (d, J = 2.4 Hz, 1H), 7.59 (br s, 2H). Mass spectrum (ES+): m/z 139 ([M + H]+).

References

[1] Journal of Heterocyclic Chemistry, 2012, vol. 49, # 4, p. 865 - 872
[2] Patent: CN106699759, 2017, A. Location in patent: Paragraph 0050; 0051; 0052
[3] Patent: US2007/259876, 2007, A1. Location in patent: Page/Page column 17
[4] Journal of the American Chemical Society, 1945, vol. 67, p. 1711
[5] Patent: US2011/118269, 2011, A1. Location in patent: Page/Page column 13

Pyrazinecarboxamide, 3-amino- (7CI,9CI) Preparation Products And Raw materials

Raw materials

Preparation Products

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View Lastest Price from Pyrazinecarboxamide, 3-amino- (7CI,9CI) manufacturers

Career Henan Chemical Co

Product: Pyrazinecarboxamide, 3-amino- (7CI,9CI) 32587-10-3
Price: US $1.00/KG
Min. Order: 1KG
Purity: 98%
Supply Ability: 200kg
Release date: 2019-08-29

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