4,4'-Carbonylbis(2-(ethoxycarbonyl)benzoic acid) CAS 51986-91-5
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 51986-91-5 |
| Molecular Formula | C21H18O9 |
| Molecular Weight | 414.36 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 4,4'-Carbonylbis(2-(ethoxycarbonyl)benzoic acid) (CAS 51986-91-5), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C21H18O9. Molecular weight: 414.36 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C21H18O9 |
| Molecular Weight | 414.36 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1971 |
Related Carbonylbis Standards
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- Carbonylbis(4,1-phenylene) diacetate (CAS 6290-82-0)
- 6,6'-(Carbonylbis(azanediyl))bis(4-hydroxynaphthalene-2-sulfonic acid) (CAS 6266-54-2)
- 4,4'-Carbonylbis(isobenzofuran-1,3-dione) (CAS 13972-93-5)
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Recommended Standards
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- (2S-​cis)​-1,​2,​3,​4,​6,​11-​Hexahydro-​2,​4,​5,​12-​tetrahydroxy-​7-​methoxy-​6,​11-​dioxo-2-​Naphthacenecarboxyli​c Acid Methyl Ester (CAS 58199-99-8)
- 2-n-Butyl-d3-1,3-diazaspiro[4.4]non-1-en-4-one (CAS 1189960-20-0)
- Methyl 5-(4-bromobenzoyl)furan-2-carboxylate (CAS 1399662-40-8)
- N-(2,2,5-trimethylhexan-3-yl)thietan-3-amine (CAS 1864582-88-6)
- 1-Benzyl-5-(4-methoxyphenyl)-1h-imidazole-2-thiol (CAS 919028-83-4)
- 3-((4-Fluorophenyl)thio)-N-(6-methoxybenzo[d]thiazol-2-yl)propanamide (CAS 896350-10-0)
- N-((1S,2S)-2-Amino-1,2-di(naphthalen-1-yl)ethyl)-4-methylbenzenesulfonamide (CAS 1293946-38-9)
- Tau Peptide (274-288) trifluoroacetate salt (CAS 330456-39-8)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 13829788188 / jacky.chen@cato-chem.com