5-Amino-4-cyano-3-methyl-thiophene-2-carboxylic acid ethyl ester
- CAS NO.：23903-46-0
- Empirical Formula: C9H10N2O2S
- Molecular Weight: 210.25
- MDL number: MFCD00463473
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-09-12 18:51:39
What is 5-Amino-4-cyano-3-methyl-thiophene-2-carboxylic acid ethyl ester?
Chemical properties
Grey solid
Properties of 5-Amino-4-cyano-3-methyl-thiophene-2-carboxylic acid ethyl ester
| Melting point: | 151 °C |
| Boiling point: | 386.6±42.0 °C(Predicted) |
| Density | 1.29±0.1 g/cm3(Predicted) |
| storage temp. | 2-8°C |
| pka | -2.25±0.10(Predicted) |
Safety information for 5-Amino-4-cyano-3-methyl-thiophene-2-carboxylic acid ethyl ester
| Signal word | Danger |
| Pictogram(s) |
 Flame Flammables GHS02  Corrosion Corrosives GHS05  Skull and Crossbones Acute Toxicity GHS06  Health Hazard GHS08 |
| GHS Hazard Statements |
H225:Flammable liquids H314:Skin corrosion/irritation H331:Acute toxicity,inhalation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation H336:Specific target organ toxicity,single exposure; Narcotic effects H340:Germ cell mutagenicity H360:Reproductive toxicity H371:Specific target organ toxicity, single exposure H372:Specific target organ toxicity, repeated exposure H373:Specific target organ toxicity, repeated exposure H401:Hazardous to the aquatic environment, acute hazard |
| Precautionary Statement Codes |
P201:Obtain special instructions before use. P202:Do not handle until all safety precautions have been read and understood. P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P233:Keep container tightly closed. P240:Ground/bond container and receiving equipment. P241:Use explosion-proof electrical/ventilating/lighting/…/equipment. P242:Use only non-sparking tools. P243:Take precautionary measures against static discharge. P260:Do not breathe dust/fume/gas/mist/vapours/spray. P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P270:Do not eat, drink or smoke when using this product. P271:Use only outdoors or in a well-ventilated area. P273:Avoid release to the environment. P280:Wear protective gloves/protective clothing/eye protection/face protection. P363:Wash contaminated clothing before reuse. P301+P330+P331:IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. P303+P361+P353:IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower. P370+P378:In case of fire: Use … for extinction. P405:Store locked up. P403+P233:Store in a well-ventilated place. Keep container tightly closed. P403+P235:Store in a well-ventilated place. Keep cool. |
Computed Descriptors for 5-Amino-4-cyano-3-methyl-thiophene-2-carboxylic acid ethyl ester
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