4,4'-(Butane-1,4-diylbis(oxy))dibenzoic acid CAS 3749-77-7
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 3749-77-7 |
| Molecular Formula | C18H18O6 |
| Molecular Weight | 330.33 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4,4'-(Butane-1,4-diylbis(oxy))dibenzoic acid (CAS 3749-77-7) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C18H18O6. Molecular weight: 330.33 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C18H18O6 |
| Molecular Weight | 330.33 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 methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
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Recommended Standards
- 4-(Methoxymethyl)-2-(methylsulfanyl)-6-[3-(trifluoromethyl)phenoxy]pyrimidine (CAS 338747-98-1)
- 4,4'-(Ethane-1,2-diylbis(oxy))bis(3-methoxybenzaldehyde) (CAS 5784-66-7)
- 4-(2-(4-(Trifluoromethyl)phenyl)thiazol-4-yl)benzonitrile (CAS 869578-20-1)
- 4-((3-Chlorophenoxy)methyl)benzohydrazide (CAS 832740-20-2)
- 2,4-Dichloro-5-(chloromethyl)-3-methylpyridine (CAS 1935891-21-6)
- 1-Benzyl-5,6-dimethylpiperidin-3-amine (CAS 1315365-98-0)
- 2-(2-Chloroethyl)-6-fluoro-1H-benzimidazole 3102AF 915923-27-2 C9H8ClFN2 (CAS 915923-27-2)
- Rimegepant Impurity 110 (CAS CATO-C4X-2487110)
- 2-(2-Bromoethyl)-1,4-dimethylbenzene (CAS 28081-38-1)
- Smac-N7 Peptide (CAS 401913-57-3)
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