3-AMINOPYRAZINE-2-CARBOXYLIC ACID METHYL ESTER
3-Aminopyrazine-2-carboxylic acid methyl ester
CAS: 16298-03-6
Molecular Formula: C6H7N3O2
3-AMINOPYRAZINE-2-CARBOXYLIC ACID METHYL ESTER - Names and Identifiers
| Name | 3-Aminopyrazine-2-carboxylic acid methyl ester |
| Synonyms | AKOS 90402 TIMTEC-BB SBB004048 methyl 3-aminopyrazinecarboxylate METHYL 2-AMINOPYRAZINE-3-CARBOXYLATE METHYL 3-AMINO-2-PYRAZINECARBOXYLATE METHYL 3-AMINOPYRAZINE-2-CARBOXYLATE methyl 3-aminopyrazine-2-carboxylate Methyl 3-amino-2-pyrazinecarboxylate Methyl 3-aminopyrazine-2-carboxylic ester 3-Aminopyrazine-2-carboxylic acid methyl ester 3-Amino-2-pyrazinecarboxylic Acid Methyl Ester 3-AMINOPYRAZINE-2-CARBOXYLIC ACID METHYL ESTER |
| CAS | 16298-03-6 |
| EINECS | 240-387-5 |
| InChI | InChI=1/C6H7N3O2/c1-11-6(10)4-5(7)9-3-2-8-4/h2-3H,1H3,(H2,7,9) |
| InChIKey | INCSQLZZXBPATR-UHFFFAOYSA-N |
3-AMINOPYRAZINE-2-CARBOXYLIC ACID METHYL ESTER - Physico-chemical Properties
| Molecular Formula | C6H7N3O2 |
| Molar Mass | 153.14 |
| Density | 1.319±0.06 g/cm3(Predicted) |
| Melting Point | 169-172 °C (lit.) |
| Boling Point | 300.8±37.0 °C(Predicted) |
| Flash Point | 135.7°C |
| Solubility | Chloroform, Methanol |
| Vapor Presure | 0.0011mmHg at 25°C |
| Appearance | Crystalline powder |
| Color | Yellow |
| BRN | 127495 |
| pKa | -0.30±0.10(Predicted) |
| Storage Condition | Keep in dark place,Sealed in dry,2-8°C |
| Refractive Index | 1.576 |
| MDL | MFCD00010097 |
3-AMINOPYRAZINE-2-CARBOXYLIC ACID METHYL ESTER - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | 36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | S22 - Do not breathe dust. S24/25 - Avoid contact with skin and eyes. S37/39 - Wear suitable gloves and eye/face protection S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. |
| WGK Germany | 3 |
| HS Code | 29339900 |
| Hazard Class | IRRITANT |
3-AMINOPYRAZINE-2-CARBOXYLIC ACID METHYL ESTER - Reference Information
| LogP | 0.2 at 20℃ and pH7 |
| surface tension | 73.3mN/m at 1g/L and 20 ℃ |
| introduction | the molar refractive index of methyl 3-aminopyrazine -2-carboxylate is 38.44, the molar volume (m3/mol) is 116.0, the isotonic specific volume (90.2 K) is 326.2, the surface tension (dyne/cm) is 62.4, and the polarizability (10-24 cm3) is 15.24. |
| application | methyl 3-aminopyrazine-2-carboxylate is an important industrial raw material and is widely used in medicine, pesticides, dyes and other industries. Because the pyrazine ring has biological activity and has the irreplaceable role of other groups or functional groups in the synthesis of drugs, it is a hot field in medical research. In addition, methyl 3-aminopyrazine-2-carboxylic acid has special chemical properties and medicinal activity. It is an intermediate of many medicines and pesticides and has a very broad application prospect. It can also be used as pharmaceutical and pharmaceutical intermediates, hair coloring aids, polymer stabilizers, antioxidants and anti-fog agents for photosensitive materials, etc. |
| Preparation method | The mixture of 3-amino-2-pyrazinarboxylic acid (10g, 72 mmol) in 100 ml of anhydrous methanol and 10 ml of concentrated sulfuric acid is reacted at room temperature for 20 hours. The reaction mixture was poured into 100 ml of ice water, made alkaline with ammonium hydroxide, and extracted with dichloromethane (70 ml × 3). The combined organic extracts were washed with brine, dried with anhydrous magnesium sulfate, filtered and evaporated. The crude product was recrystallized and purified with water to obtain 5g of yellow solid methyl 3-aminopyrazine-2-carboxylic acid with a yield of 7.9g and 72%. |
Last Update：2024-04-09 21:11:58
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