4,4'-(Propane-2,2-diyl)bis((allyloxy)benzene) CAS 3739-67-1
| CAS No. | 3739-67-1 |
| Molecular Formula | C21H24O2 |
| Molecular Weight | 308.41 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 4,4'-(Propane-2,2-diyl)bis((allyloxy)benzene) (CAS 3739-67-1), a certified reference material (molecular formula C21H24O2, MW 308.41 g/mol) for analytical method development and quality control.
Structurally, 4,4'-(Propane-2,2-diyl)bis((allyloxy)benzene) (C21H24O2) contains a steroid 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 308.41 g/mol, it falls into the moderately-high-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C21H24O2 |
| Molecular Weight | 308.41 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
Related Propane Standards
- 2,2'-((Propane-2,2-diylbis(4,1-phenylene))bis(methylene))bis(oxirane) (CAS 3530-44-7)
- 4,4’-(Propane-2,2-diyl)bis(2-allylphenol) (CAS 1745-89-7)
- 4-[(propane-1-sulfonamido)methyl]benzene-1-sulfonyl chloride (CAS 1016696-49-3)
- 1,1'-(Propane-1,2-diyl)bis(3-phenylurea) (CAS 91625-84-2)
- Propane-1,3-diyl bis(4-aminobenzoate) (CAS 57609-64-0)
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- 4-(Propane-1-sulfonamido)benzene-1-sulfonyl chloride (CAS 1016679-17-6)
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Recommended Standards
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- Mefatinib Impurity 10 (CAS CATO-C4X-299210)
- (S)-2-amino-1-(indolin-1-yl)propan-1-one (CAS 500138-78-3)
- Prop-2-yn-1-yl 4-(benzyloxy)-3-chloro-5-ethoxybenzoate (CAS 1706452-35-8)
- (4-(4-((4-(Chlorodifluoromethoxy)phenyl)amino)phthalazin-1-yl)phenyl)(morpholino)methanone (CAS 405279-18-7)
- <I>N,N</I>-Diethyl-1,1,1′,1′-d<SUB>4</SUB>,-1,3-propanediamine (CAS 1313734-72-3)
- Semaglutide Impurity 10 (CAS CATO-C4X-222610)
Why CATO?
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- 130,000+ catalog items in stock, COA supplied with every batch
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