4,5-Dimethylthiophene-3-carboxylic Acid CAS 19156-52-6
| CAS No. | 19156-52-6 |
| Molecular Formula | C7H8O2S |
| Molecular Weight | 156.20 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 156.20 g/mol gives 4,5-Dimethylthiophene-3-carboxylic Acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
4,5-Dimethylthiophene-3-carboxylic Acid (CAS 19156-52-6), molecular formula C7H8O2S and molecular weight 156.20 g/mol, is a CATO reference standard with documented purity and traceability.
4,5-Dimethylthiophene-3-carboxylic Acid (C7H8O2S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 4,5-Dimethylthiophene-3-carboxylic Acid under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C7H8O2S |
| Molecular Weight | 156.20 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
| Sulfur Atoms | 1 |
Related Dimethylthiophene Standards
- 2,4-Dimethylthiophene-3-carboxylic acid (CAS 503308-96-1)
- 4,5-Dimethylthiophene-2-carboxylic acid (CAS 40808-24-0)
- 4,5-Dimethylthiophene-2-carboxamide (CAS 473693-83-3)
- N,3-dimethylthiophene-2-carboxamide (CAS 56776-68-2)
- 2,5-Dimethylthiophene-3-carboximidamide (CAS 1251102-46-1)
- 3-Acetyl-2,5-dimethylthiophene (CAS 2530-10-1)
- 3,4-dimethylthiophene-2-carboxylic acid (CAS 89639-74-7)
- 3,5-dimethylthiophene-2-carboxylic acid (CAS 65613-27-6)
Recommended Standards
- 5-Ethylthiophene-3-carboxylic acid (CAS 19156-51-5)
- Methyl 2-Thiopheneacetate (CAS 19432-68-9)
- 3-(3-Thienyl)propanoic Acid (CAS 16378-06-6)
- Methyl 5-methylthiophene-2-carboxylate (CAS 19432-69-0)
- 3-(1-azepanylsulfonyl)-N-(3-nitrophenyl)benzamide 330461-64-8 C19H21N3O5S Y1899 (CAS 330461-64-8)
- 2-Chloro-4-phenylthiazole-5-carboxylic acid (CAS 74476-66-7)
- tert-Butyl N-(5,5-dimethyl-1-oxohexan-2-yl)carbamate (CAS 1909348-64-6)
- Hexanedioic acid, polymer with N1,N1,N4,N4-tetramethyl-1,4-benzenediamine and 2,2,4-trimethyl-1,3-pentanediol mono(2-methylpropanoate) (CAS 68922-29-2)
- N-(3,5-Dimethylphenyl)-2-((5-(pyridin-4-yl)-4-(p-tolyl)-4H-1,2,4-triazol-3-yl)thio)acetamide (CAS 477318-65-3)
- N,N'-diphenylacetohydrazide (CAS 22293-38-5)
- 1-(2-Phenoxyethyl)-1H-benzo[d]imidazole-2-carbaldehyde (CAS 889951-13-7)
- (2R)-2-(iodomethyl)oxetane (CAS 2306249-69-2)
- Ilaprazole Impurity 12 (CAS CATO-C4X-113012)
- (Glu1)-Fibrinopeptide B (human) (CAS 103213-49-6)
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