5-(METHOXYCARBONYL)THIOPHENE-2-CARBOXYLIC ACID
- CAS NO.：50340-79-9
- Empirical Formula: C7H6O4S
- Molecular Weight: 186.19
- MDL number: MFCD01203161
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-05-28 05:47:44
What is 5-(METHOXYCARBONYL)THIOPHENE-2-CARBOXYLIC ACID?
Chemical properties
White solid
Structure and conformation
Thiophene-2,5-dicarboxylic acid monomethyl ester (TDCEM) has been shown to form dimers in solution. The crystal structure of TDCEM has been determined and found to be centrosymmetric with hydrogen bonds between the carbonyl oxygen atoms and the methyl groups on either side, as well as dihedral angles for the two methyl groups.
Properties of 5-(METHOXYCARBONYL)THIOPHENE-2-CARBOXYLIC ACID
| Melting point: | 187-190℃ |
| Boiling point: | 365.2±27.0 °C(Predicted) |
| Density | 1.439±0.06 g/cm3(Predicted) |
| storage temp. | 2-8°C(protect from light) |
| pka | 3.04±0.10(Predicted) |
Safety information for 5-(METHOXYCARBONYL)THIOPHENE-2-CARBOXYLIC ACID
| Signal word | Danger |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07  Health Hazard GHS08  Environment GHS09 |
| GHS Hazard Statements |
H302:Acute toxicity,oral H320:Serious eye damage/eye irritation H341:Germ cell mutagenicity H350:Carcinogenicity H370:Specific target organ toxicity, single exposure H373:Specific target organ toxicity, repeated exposure H410:Hazardous to the aquatic environment, long-term hazard |
| Precautionary Statement Codes |
P201:Obtain special instructions before use. P202:Do not handle until all safety precautions have been read and understood. 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. P273:Avoid release to the environment. P280:Wear protective gloves/protective clothing/eye protection/face protection. P391:Collect spillage. Hazardous to the aquatic environment P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. P337+P313:IF eye irritation persists: Get medical advice/attention. P405:Store locked up. |
Computed Descriptors for 5-(METHOXYCARBONYL)THIOPHENE-2-CARBOXYLIC ACID
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