2-(Thiophen-2-ylmethylene)malonic acid CAS 4475-25-6
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 4475-25-6 |
| Molecular Formula | C8H6O4S |
| Molecular Weight | 198.20 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 2-(Thiophen-2-ylmethylene)malonic acid (CAS 4475-25-6), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C8H6O4S. Molecular weight: 198.20 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C8H6O4S |
| Molecular Weight | 198.20 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Sulfur Atoms | 1 |
Related Thiophen Standards
- (2Z)-2-(Thiophen-2-yl)but-2-enedioic acid (CAS 339016-61-4)
- 3-Oxo-4-thiophen-3-yl-butyric acid methyl ester (CAS 1229625-47-1)
- 5-Oxo-5-(thiophen-2-yl)pentanoic acid (CAS 22971-62-6)
- 5-(Thiophen-2-ylmethyl)-1,3,4-oxadiazole-2-thiol (CAS 1152542-90-9)
- 1-(Thiophen-2-ylmethyl)-1h-1,2,3,4-tetrazole-5-thiol (CAS 872108-04-8)
- 5-(Thiophen-3-ylmethyl)-1,3,4-oxadiazole-2-thiol (CAS 262856-02-0)
- 2-Ethyl-4-(thiophen-3-yl)butanoic acid (CAS 1344128-80-8)
- (4-(Thiophen-2-yl)tetrahydro-2H-pyran-4-yl)methanol (CAS 906352-94-1)
Recommended Standards
- 2-(5-Oxo-5,6-dihydroimidazo[2,1-b]thiazol-3-yl)acetic acid (CAS 933686-94-3)
- 2,3-Dihydrothieno[3,4-b][1,4]dioxine-5,7-dicarbaldehyde (CAS 211235-87-9)
- 2-(5-Fluoro-2,3-dihydro-1H-inden-1-ylidene)malononitrile (CAS 853314-22-4)
- 2-Benzyl-4-(2-fluorophenyl)-5-methyl-2,4-dihydro-3H-1,2,4-triazol-3-one (CAS 860784-85-6)
- (2,4-Dihydroxybenzyl)carbamic acid (CAS 244121-76-4)
- Prephenylmercapturic Acid (Mixture of Diastereomers)DISCONTINUED (CAS 122083-16-3)
- 2-(4-Fluoro-2-methyl-phenyl)piperazine dihydrochloride (CAS 1986728-42-0)
- GRK2i (CAS 148505-03-7)
- N-(2-{[3-chloro-5-(trifluoromethyl)pyridin-2-yl]sulfanyl}ethyl)-2,6-difluorobenzamide (CAS 1708126-04-8)
- Semaglutide impurity 237 (CAS CATO-C4X-2226237)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 13829788188 / jacky.chen@cato-chem.com