2,2'-(2,5-Dimethyl-1,4-phenylene)bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolane) CAS 303006-89-5
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 303006-89-5 |
| Molecular Formula | C20H32B2O4 |
| Molecular Weight | 358.09 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2,2'-(2,5-Dimethyl-1,4-phenylene)bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolane) (CAS 303006-89-5) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C20H32B2O4. Molecular weight: 358.09 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C20H32B2O4 |
| Molecular Weight | 358.09 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
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Recommended Standards
- (3aS,3’aS,4S,4’S,6S,6’S,7aR,7’aR)-3a,3’a,5,5,5’,5’-Hexamethyldodecahydro-2,2’-bi[4,6-methanobenzo[d][1,3,2]dioxaborole] (CAS 230299-05-5)
- 4,5-Dichloro-2-(2,6-difluoro-4-(trifluoromethyl)phenoxy)aniline (CAS 2244085-40-1)
- (3aR,3’aR,4R,4’R,6R,6’R,7aS,7’aS)-3a,3’a,5,5,5’,5’-Hexamethyldodecahydro-2,2’-bi[4,6-methanobenzo[d][1,3,2]dioxaborole] (CAS 230299-17-9)
- 3-(Aminomethyl)-1,5-dimethylpyridin-2(1H)-one (CAS 1780687-83-3)
- 2-Methylhex-5-en-3-yn-2-ol (CAS 690-94-8)
- 2-(3-Benzylphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 1073355-05-1)
- 3,4,5-trimethyl-1H-pyrrole-2-carboxylic acid (CAS 17106-08-0)
- (E)-4-((2-((2-(Trifluoromethyl)phenyl)sulfonyl)hydrazono)methyl)phenyl acetate (CAS 2477727-75-4)
- 6-fluoronaphthalen-1-amine (CAS 62078-78-8)
- (Des-Thr7)-Glucagon trifluoroacetate salt (CAS 1802078-28-9)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
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