4,4’-Methylenebis(2,6-dimethylphenol) CAS 5384-21-4
| CAS No. | 5384-21-4 |
| Molecular Formula | C17H20O2 |
| Molecular Weight | 256.34 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 4,4’-Methylenebis(2,6-dimethylphenol) meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
4,4’-Methylenebis(2,6-dimethylphenol) (CAS 5384-21-4), molecular formula C17H20O2 and molecular weight 256.34 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 4,4’-Methylenebis(2,6-dimethylphenol) (C17H20O2) contains a steroid core, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 256.34 g/mol, it falls into the medium-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C17H20O2 |
| Molecular Weight | 256.34 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
Related Methylenebis Standards
- 5,5'-Methylenebis(2-hydroxybenzaldehyde) (CAS 3046-82-0)
- 4,4'-Methylenebis(2,5-dimethylaniline) (CAS 5339-30-0)
- 4,4'-Methylenebis(2-ethylaniline) (CAS 19900-65-3)
- 1,1'-(Methylenebis(4,1-phenylene))bis(ethan-1-one) (CAS 790-82-9)
- Methylenebis(dichlorophosphonic acid) (CAS 1499-29-2)
- 2,2′-Methylenebis[(4<I>S</I>)-4-tert-butyl-2-oxazoline] (CAS 132098-54-5)
- 4,4'-Methylenebis[N,N-dimethylcyclohexanamine] (CAS 13474-64-1)
- 2,2'-Methylenebis(4,4,5,5-tetramethyl-1,3,2-dioxaborolane) 78782-17-9 B4103 Bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)methane Bis[(pinacolato)boryl]methane (CAS 78782-17-9)
Recommended Standards
- 9,10-Dihydrolysergol (CAS 18051-16-6)
- Dimethyl-Bisphenol A (CAS 1568-83-8)
- 2,2-Bis(4-hydroxy-3-methylphenyl)propane (CAS 79-97-0)
- 9-Methyl-9-phenylfluorene (CAS 56849-83-3)
- 4-((4-Ethynylphenyl)ethynyl)benzoic acid (CAS 866825-55-0)
- 2-(Aminomethyl)-3-(difluoromethyl)-5-methoxy-4-(trifluoromethyl)pyridine (CAS 1361468-48-5)
- 2-Iodo-5,6,7,8-tetrahydroimidazo[1,2-a]pyridine (CAS 1373338-08-9)
- N'-hydroxy-1,3-thiazole-5-carboximidamide (CAS 51640-54-1)
- 5-Methoxy-2-(trifluoromethyl)aniline (CAS 654-83-1)
- (6-(4-Methylpiperidin-1-yl)pyridin-2-yl)boronic acid (CAS 1310404-14-8)
- methyl 2,2-difluoro-2-(methoxysulfonyl)acetate (CAS 1869-42-7)
- 4-(3,5-Dioxopiperazin-1-yl)benzaldehyde (CAS 1481953-57-4)
- 5-Propionyl-1H-benzo[d]imidazol-2(3H)-one (CAS 93202-42-7)
- Insulin Degludec Impurity 8 (CAS CATO-C4X-21578)
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