4,4'-Dinitro-[1,1'-biphenyl]-2,2'-dicarboxylic acid CAS 20246-81-5
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 20246-81-5 |
| Molecular Formula | C14H8N2O8 |
| Molecular Weight | 332.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4,4'-Dinitro-[1,1'-biphenyl]-2,2'-dicarboxylic acid (CAS 20246-81-5) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C14H8N2O8. Molecular weight: 332.22 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C14H8N2O8 |
| Molecular Weight | 332.22 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
| Nitrogen Atoms | 2 |
Related Dinitro Standards
- 5,5'-Dinitro-[1,1'-biphenyl]-3,3'-dicarboxylic acid (CAS 144949-59-7)
- 3,3'-Dinitro-[1,1'-biphenyl]-4,4'-dicarboxylic acid (CAS 1799740-96-7)
- 2,2'-Dinitro-[1,1'-biphenyl]-4,4'-dicarboxylic acid (CAS 41725-30-8)
- 1-(7,8-Dinitro-1,2,4,5-tetrahydro-3H-benzo[d]azepin-3-yl)-2,2,2-trifluoroethan-1-one (CAS 1241840-71-0)
- 1-[2,6-Dinitro-4-(trifluoromethyl)phenyl]tetrahydro-4(1H)-pyridinone (CAS 338757-95-2)
- 1-[2,6-Dinitro-4-(trifluoromethyl)phenyl]-1,4-diazepane (CAS 341967-79-1)
- 2,4-Dinitro-N,N-diphenylaniline (CAS 68522-81-6)
- 1,3-Dinitro-2-phenoxy-5-(trifluoromethyl)benzene (CAS 17811-45-9)
Recommended Standards
- 4-(4-Bromophenyl)-N-(pyridin-3-yl)thiazol-2-amine (CAS 256471-39-3)
- 4-Chloro-3-(2-chloroethyl)-2-methyl-6-phenoxyquinoline (CAS 861209-99-6)
- 4-(3,4-Dichlorophenyl)-2-(4-ethylphenyl)-4-oxobutanenitrile (CAS 344282-32-2)
- 3,5-Dimethyl-N-phenethylisoxazole-4-carboxamide (CAS 848291-56-5)
- 1-(6,8-Difluoro-2-methylquinolin-4-yl)-3-(4-(dimethylamino)phenyl)urea (CAS 288150-92-5)
- Semaglutide Impurity 177 (CAS CATO-C4X-2226177)
- Acetic (tris(trimethylsilyl) orthosilicic) anhydride (CAS 74098-43-4)
- Butyl Isothiocyanate (CAS 592-82-5)
- H-Phe-Pro-OH (CAS 7669-65-0)
- Semaglutide Impurity 16 (CAS CATO-C4X-222616)
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