PRODUCT IDENTIFICATION
H.S. CODE
TOXICITY
CLASSIFICATION
PHYSICAL AND CHEMICAL PROPERTIES
MELTING POINT
SOLUBILITY IN WATER
REFRACTIVE INDEX
GENERAL DESCRIPTION & APPLICATIONS
APPEARANCE
MELTING POINT
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| PYRAZINOIC ACID | ||
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PRODUCT IDENTIFICATION |
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| CAS NO. | 98-97-5 |
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| EINECS NO. | 202-718-1 | |
| FORMULA | C5H4N2O2 | |
| MOL WT. | 124.10 | |
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H.S. CODE |
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TOXICITY |
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| SYNONYMS | 2-Pyrazinecarboxylic acid; Pyrazine-2-carboxylic acid; | |
| Pyrazin-2-carbonsäure; ácido pirazina-2-carboxilico; Acide pyrazine-2-carboxylique; | ||
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CLASSIFICATION |
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PHYSICAL AND CHEMICAL PROPERTIES |
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| PHYSICAL STATE | white to off-white crystalline powder | |
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MELTING POINT |
222 - 225 C (Decomposes) | |
| BOILING POINT | ||
| SPECIFIC GRAVITY | ||
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SOLUBILITY IN WATER |
soluble | |
| pH | ||
| VAPOR DENSITY |
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| AUTOIGNITION | ||
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REFRACTIVE INDEX |
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| NFPA RATINGS | ||
| FLASH POINT | ||
| STABILITY | Stable under ordinary conditions. | |
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GENERAL DESCRIPTION & APPLICATIONS |
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| Pyrazine, hygroscopic white solid, is an aromatic nitrogen compound characterized by a ring structure contains 4 carbon atoms with two nitrogen atoms at 1 and 4 positions; melting at 55 - 56 C, boiling at 115 - 116 C. Pyrazine is freely soluble in water. It is fused to form many polycyclic compounds, as useful structures in pharmaceuticals and perfumes. It is a component of the folates (vitamin B compounds) and of the isoalloxazine ring nucleus of flavins. Numerous pyrazine derivatives such as pyrazine polycyclic compounds, alkyl-, alicyclic-, and alkylaryl-substituted compounds, derivatives containing oxygenated functional groups and thio- functional groups in the side-chains are used in biological, drug, flavouring and perfumery industry. Pyrazinoic acid, carboxylic acid substituted pyrazine, is an intermediate for organic reactions. | ||
| SALES SPECIFICATION | ||
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APPEARANCE |
clear to off-white crystalline powder | |
| ASSAY (G.C) | 98.0% min | |
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MELTING POINT |
222 - 225 C | |
| TRANSPORTATION | ||
| PACKING | ||
| HAZARD CLASS | ||
| UN NO. | ||
| OTHER INFORMATION | ||
| Hazard Symbols: , Risk Phrases: , Safety Phrases: 22-24/25 | ||
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