(S)-5,5'-Dibromo-3,3'-di-tert-butyl-6,6'-dimethyl-[1,1'-biphenyl]-2,2'-diol CAS 1170165-78-2
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 1170165-78-2 |
| Molecular Formula | C22H28Br2O2 S |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(S)-5,5'-Dibromo-3,3'-di-tert-butyl-6,6'-dimethyl-[1,1'-biphenyl]-2,2'-diol (CAS 1170165-78-2) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C22H28Br2O2 S. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C22H28Br2O2 S |
| Molecular Weight | 516.33 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Halogen Content | Br-containing |
| Sulfur Atoms | 1 |
Related S Standards
- 3,5-Dibromo-2-chloro-4-methylpyridine (CAS 1000017-92-4)
- 3,5-Dibromo-2-chloro-6-methylpyridine (CAS 1000018-58-5)
- 2,6-Dibromo-4-(trifluoromethyl)pyridine (CAS 1000152-84-0)
- 3,5-Dibromo-2-fluoro-4-methylpyridine (CAS 1000340-01-1)
- 3,4-Dibromo-7-azaindole (CAS 1000340-33-9)
- 4,6-Dibromo-1H-pyrrolo[2,3-b]pyridine (CAS 1000340-66-8)
- 3,6-Dibromo-5-methoxy-1H-pyrrolo[3,2-b]pyridine (CAS 1000341-07-0)
- 3,6-Dibromo-1H-pyrrolo[3,2-c]pyridine (CAS 1000341-69-4)
Recommended Standards
- 2-Propenoic acid, 2-methyl-, 1,1'-(1,2-ethanediyl) ester, polymer with ethenylbenzene, chloromethylated, trimethylamine-quaternized, hydroxide (CAS 69011-49-0)
- Methyl 4-chloro-1-methyl-1H-pyrazole-3-carboxylate (CAS 1017784-04-1)
- Tadalafil Impurity 20 (CAS 171752-68-4)
- Methyl 2-{1-[4-(1H-imidazol-1-yl)phenyl]ethylidene}-1-hydrazinecarboxylate (CAS 303148-80-3)
- 3-[4-(4-Fluorophenyl)piperazine-1-carbonyl]-5-methyl-5H,5aH,6H,7H,8H,9H,10H,12H-azepino[2,1-b]quinazolin-12-one (CAS 1775471-99-2)
- 4,6-Dihydroxyisophthalic Acid (CAS 19829-74-4)
- Fibrinogen-Binding Inhibitor Peptide (CAS 89105-94-2)
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