Name | Cyanoacetamide |
Synonyms | CAA Kyanacetamid Cyanacetamide Cyanoacetamide Malonamonitrile 2-Cyanoacetamide malonamidenitrile Malonamide nitrile cyanoiminoaceticacid amidkyselinykyanoctove monoamidemononitrile-malonicaci |
CAS | 107-91-5 |
EINECS | 203-531-8 |
InChI | InChI:1S/C3H4N2O/c4-2-1-3(5)6/h1H2,(H2,5,6) |
Molecular Formula | C3H4N2O |
Molar Mass | 84.08 |
Density | 1,4 g/cm3 |
Melting Point | 119-121°C(lit.) |
Boling Point | 154.34°C (rough estimate) |
Flash Point | 419°F |
Water Solubility | soluble |
Solubility | Slightly soluble in water, soluble in ethanol. |
Appearance | White crystal |
Color | White to light cream |
Odor | Odorless |
Merck | 14,2688 |
BRN | 878221 |
pKa | -1.27±0.10(Predicted) |
Storage Condition | Sealed in dry,Room Temperature |
Refractive Index | 1.5110 (estimate) |
MDL | MFCD00008024 |
Physical and Chemical Properties | Melting point 118-122°C flash point 215°C water-soluble solution |
Use | Used as pharmaceutical, dye and electroplating solution intermediates |
Hazard Symbols | Xn - Harmful |
Risk Codes | R22 - Harmful if swallowed R36/37/38 - Irritating to eyes, respiratory system and skin. R20/21/22 - Harmful by inhalation, in contact with skin and if swallowed. |
Safety Description | S22 - Do not breathe dust. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S28A - |
UN IDs | UN 3439 6.1/PG 3 |
WGK Germany | 2 |
RTECS | AB5950000 |
TSCA | Yes |
HS Code | 29269095 |
Packing Group | III |
white or light yellow needle-like crystals or powder. Melting point 119.5 °c. Slightly soluble in water, soluble in ethanol.
can be prepared from ethyl cyanoacetate and ammonia. The ethyl cyanoacetate was cooled to below 200 ℃, and concentrated ammonia water was added for reaction to obtain the mixture was changed from turbidity to clear. After cooling in cold water for 20 minutes, precipitation was precipitated, and the crude product was obtained after filtration and spin drying, then add the crude cyanoacetamide
In the boiling ethanol, after it is dissolved, a small amount of activated carbon is added, decolorized and refined, filtered, the filtrate is cooled and precipitated, and dried at 80-100 ° C. To obtain cyanoacetamide fine product.
organic synthesis raw materials for the synthesis of malononitrile and electroplating solution, also used for the synthesis of triamterene and other drugs.
NIST chemical information | Information provided by: webbook.nist.gov (external link) |
EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
use | cyanoacetamide is an organic synthetic raw material, used for the synthesis of malononitrile, dyes and electroplating solutions, and also used for the synthesis of drugs methanopteridine and aminopterin. |
Production method | It can be prepared by the interaction of ethyl cyanoacetate and ammonia. Cool ethyl cyanoacetate to below 200 ℃, add concentrated ammonia water for reaction, and the mixture changes from turbid to clear. After cooling in cold water for 20 minutes, precipitate precipitate, filter and spin dry to obtain a crude product, and then add cyanoacetamide The crude product is added to boiling ethanol, and after it is dissolved, a small amount of activated carbon is added to decolorize and refine, filter, the filtrate is cooled and precipitated, and dried at 80-100 ℃ to produce fine cyanoacetamide. |
toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |