3,5-Bis-benzyloxy-4-bromobenzoic acid CAS 177956-45-5
| CAS No. | 177956-45-5 |
| Molecular Formula | C21H17BrO4 |
| Molecular Weight | 413.26 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 3,5-Bis-benzyloxy-4-bromobenzoic acid is closely related to a flavonoid core, a hydroxyl group, an ether linkage, bromine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
3,5-Bis-benzyloxy-4-bromobenzoic acid (CAS 177956-45-5), molecular formula C21H17BrO4 and molecular weight 413.26 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a flavonoid core, a hydroxyl group, an ether linkage, bromine substitution, 3,5-Bis-benzyloxy-4-bromobenzoic acid is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 413.26 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 3,5-Bis-benzyloxy-4-bromobenzoic acid 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 | C21H17BrO4 |
| Molecular Weight | 413.26 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2007 |
| Halogen Content | Br-containing |
Related Bis Standards
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- 7-(Benzyloxy)-2-chloro-6-methoxy-N-(1-methylpiperidin-4-yl)quinazolin-4-amine (CAS 1197196-50-1)
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Recommended Standards
- 2-Bromo-N-((5-(2-methyl-2,3-dihydrobenzofuran-5-yl)isoxazol-3-yl)methyl)benzamide (CAS 1209236-38-3)
- (S)-4-(3-Bromo-2-formylphenyl)-1-(tert-butoxy-carbonyl)piperazine-2-carboxylic acid 1786533-40-1 (CAS 1786533-40-1)
- Mosapride Impurity 53 (CAS CATO-C4X-104453)
- (S)-4-(2-Bromo-4-formylphenyl)-1-(tert-butoxy-carbonyl)piperazine-2-carboxylic acid 1786553-06-7 (CAS 1786553-06-7)
- 2-Chlorobenzo[e]pyrido[1,2-a][1,3]diazepin-6(11h)-imine (CAS 295360-36-0)
- 5-(3-Hydroxypropyl)-2(1H)-pyrimidinethione (CAS 201021-89-8)
- (1S)-2,2-diphenyl-1-(pyrrolidin-2-yl)ethan-1-ol (CAS 1902258-10-9)
- (3-(1-Methylcyclopropyl)-1H-indol-2-yl)methanol (CAS 1956377-66-4)
- 2-(4-Cyclopropyl-1H-pyrazol-1-yl)acetic acid (CAS 1402411-46-4)
- H-p-Carboxy-Phe(OtBu)-OH (CAS 218962-77-7)
- 2-[4-(3-chlorophenyl)piperazine-1-carbonyl]benzoic acid (CAS 841270-53-9)
- Desvenlafaxine Impurity 2 (CAS CATO-C4X-16102)
- (2,3-Dimethylimidazo[2,1-b]thiazol-6-yl)methanamine dihydrochloride (CAS 1609408-00-5)
- Semaglutide Impurity 184 (CAS CATO-C4X-2226184)
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