(3AS,4R,5R,7aS)-7-bromo-2,2-dimethyl-3a,4,5,7a-tetrahydrobenzo[d][1,3]dioxole-4,5-diol CAS 130669-72-6
| CAS No. | 130669-72-6 |
| Molecular Formula | C9H13BrO4 |
| Molecular Weight | 265.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
(3AS,4R,5R,7aS)-7-bromo-2,2-dimethyl-3a,4,5,7a-tetrahydrobenzo[d][1,3]dioxole-4,5-diol (CAS 130669-72-6), molecular formula C9H13BrO4 and molecular weight 265.10 g/mol, is a CATO reference standard with documented purity and traceability.
(3AS,4R,5R,7aS)-7-bromo-2,2-dimethyl-3a,4,5,7a-tetrahydrobenzo[d][1,3]dioxole-4,5-diol (C9H13BrO4) contains a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
CATO manufactures (3AS,4R,5R,7aS)-7-bromo-2,2-dimethyl-3a,4,5,7a-tetrahydrobenzo[d][1,3]dioxole-4,5-diol under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C9H13BrO4 |
| Molecular Weight | 265.10 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1994 |
| Halogen Content | Br-containing |
Recommended Standards
- 3-Bromo-5-(4-hydroxyphenyl)phenol (CAS 1261956-89-1)
- 3-(4,5-Dichloropyrimidin-2-yl)pyrazolo[1,5-a]pyridine (CAS 1331768-91-2)
- 2-(7-bromonaphthalen-2-yl)acetic acid (CAS 1261687-94-8)
- 4-(4-Bromophenoxy)phenol (CAS 13320-48-4)
- 4-(2,4-Dichlorophenyl)-5-(ethylsulfonyl)-2-thioxo-1,2-dihydropyridine-3-carbonitrile (CAS 1779131-97-3)
- 6-bromo-5-fluoro-quinoline (CAS 127827-51-4)
- Ethyl (1R,3R)-3-hydroxycyclohexane-1-carboxylate (CAS 2306249-93-2)
- N-(4-Methylbenzyl)-2-(piperidin-4-yl)acetamide (CAS 1016887-10-7)
- 1-(4-Fluorophenyl)-N-methylpropan-1-amine (CAS 926262-89-7)
- N-(4-(Thiazol-2-yloxy)benzyl)benzo[c][1,2,5]thiadiazole-5-carboxamide (CAS 2034525-71-6)
- Methyl 2-(3-bromo-5-(cyanomethyl)-1H-pyrazol-1-yl)acetate (CAS 2246364-60-1)
- Antioxygen 5057 (CAS 68411-46-1)
- 3’-(Difluoromethoxy)acetophenone (CAS 101975-23-9)
- (Tyr9)-Cholecystokinin Octapeptide (sulfated) (H-9770.0005) (CAS 96607-61-3)
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 18665070610 / Nicole.chen@cato-chem.com