4,4'-(Butane-1,4-diylbis(oxy))dibenzoic acid CAS 3749-77-7
| 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
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO supplies 4,4'-(Butane-1,4-diylbis(oxy))dibenzoic acid (CAS 3749-77-7), a certified reference material (molecular formula C18H18O6, MW 330.33 g/mol) for analytical method development and quality control.
Structurally, 4,4'-(Butane-1,4-diylbis(oxy))dibenzoic acid (C18H18O6) contains a flavonoid core, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 10.0, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 330.33 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO manufactures 4,4'-(Butane-1,4-diylbis(oxy))dibenzoic 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 | 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 |
Related Butane Standards
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- (S)-Butane-1,2,4-triyl trimethanesulfonate (CAS 99520-81-7)
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- 2,2'-(Butane-1,4-diyl)bis(isoquinolin-2-ium) bromide (CAS 67258-24-6)
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- 3,3'-(Butane-1,4-diylbis(azanediyl))bis(1,1,1-trifluoropropan-2-ol) (CAS 477858-31-4)
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Recommended Standards
- 4-(Methoxymethyl)-2-(methylsulfanyl)-6-[3-(trifluoromethyl)phenoxy]pyrimidine (CAS 338747-98-1)
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- 4-(2-(4-(Trifluoromethyl)phenyl)thiazol-4-yl)benzonitrile (CAS 869578-20-1)
- 4,5-Dimethoxy-2-({[3-(trifluoromethyl)phenyl]methyl}sulfanyl)pyrimidine (CAS 339275-94-4)
- 4-((3-Chlorophenoxy)methyl)benzohydrazide (CAS 832740-20-2)
- 2,4-Dichloro-5-(chloromethyl)-3-methylpyridine (CAS 1935891-21-6)
- (Z)-4-((3-(2,4-dioxo-3-azabicyclo[3.1.0]Hexan-3-yl)-4-oxo-2-thioxothiazolidin-5-ylidene)methyl)benzonitrile (CAS 866156-28-7)
- 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)
- Faropenem Impurity 18 (CAS 153165-72-1)
- N,N-Dimethyl-2-(3-methylisoxazol-5-yl)ethanamine (CAS 173850-47-0)
- Smac-N7 Peptide (CAS 401913-57-3)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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