1,3-Dimethyl-1,3-diphenylcyclobutane CAS 597-28-4
| CAS No. | 597-28-4 |
| Molecular Formula | C18H20 |
| Molecular Weight | 236.35 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 1,3-Dimethyl-1,3-diphenylcyclobutane.
1,3-Dimethyl-1,3-diphenylcyclobutane (CAS 597-28-4) is a high-purity analytical reference standard with the molecular formula C18H20 and a molecular weight of 236.35 g/mol.
Structurally, 1,3-Dimethyl-1,3-diphenylcyclobutane (C18H20) contains a polycyclic aromatic system. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 236.35 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.
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 | C18H20 |
| Molecular Weight | 236.35 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
Related Dimethyl Standards
- 1-(3,5-Dimethyl-4-(pentyloxy)phenyl)ethan-1-ol (CAS 1443304-03-7)
- 5,5-Dimethyl-3-((piperidin-4-ylmethyl)amino)cyclohex-2-en-1-one (CAS 332144-70-4)
- 6-Butyl-5,7-dimethyl-[1,2,4]triazolo[1,5-a]pyrimidine-2-thiol (CAS 1193388-61-2)
- 5,6-Dimethyl-3-(pyrrolidin-1-yl)pyridazine-4-carbothioamide (CAS 1249465-16-4)
- 1-(1-Ethyl-3,5-dimethyl-1h-pyrazol-4-ylmethyl)-piperidin-3-ylamine (CAS 1006484-18-9)
- 1-((1-Ethyl-3,5-dimethyl-1h-pyrazol-4-yl)methyl)piperidin-4-amine (CAS 1018995-68-0)
- 17374-22-0 5,6-Dimethyl-4-phenyl-4H-1,3,4-thiadiazine-2-thiol MFCD02039511 (CAS 17374-22-0)
- (4,4-Dimethyl-4,5-dihydro-thiazol-2-yl)-(2-methoxy-phenyl)-amine (CAS 522607-01-8)
Recommended Standards
- 1,3-Dicyclohexylpropane-1,3-dione (CAS 55846-67-8)
- 1-Butyl-4-(diethoxymethyl)benzene (CAS 83803-80-9)
- 1,1-Methanediyl Bismethanethiosulfonate (CAS 22418-52-6)
- 1-Phenanthrenecarboxylic Acid (CAS 27875-89-4)
- 2-(Difluoromethyl)-6-methoxy-3-nitro-5-(trifluoromethoxy)pyridine (CAS 1804791-56-7)
- (R)-2-(2-Aminoacetamido)propanoic acid (CAS 691-81-6)
- 7-Methoxy-2-(2-nitrophenyl)quinoline-5,8-dione (CAS 61472-47-7)
- Fluvoxamine impurity 44 (CAS CATO-C4X-195144)
- 1-(Trimethylsilyl)-3,4-dichlorobenzene (CAS 149021-03-4)
- 4-benzyl-5'-phenyl-2H,2'H,4H-spiro[benzo[b][1,4]oxazine-3,3'-furan] (CAS 1799616-63-9)
- 4-[(E)-(4-Chlorophenyl)diazenyl]benzene-1,3-diamine (CAS 18371-09-0)
- N,N-Dibenzyl-4-((2,2-diphenylhydrazono)methyl)-3-methylaniline (CAS 103079-11-4)
- 4,5-Dibromothiophene-2-sulfonyl chloride (CAS 81606-31-7)
- Semaglutide Impurity 184 (CAS CATO-C4X-2226184)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com