1,7-Diphenylheptan-3-one CAS 87657-76-9
| CAS No. | 87657-76-9 |
| Molecular Formula | C19H22O |
| Molecular Weight | 266.38 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
1,7-Diphenylheptan-3-one (CAS 87657-76-9), molecular formula C19H22O and molecular weight 266.38 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a steroid core, a hydroxyl group, an ether linkage, 1,7-Diphenylheptan-3-one is typically pale yellow to yellow low-melting solid. Its solid-state physicochemical attributes — including a molecular weight of 266.38 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), 1,7-Diphenylheptan-3-one 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.
Physical & Chemical Properties
| Molecular Formula | C19H22O |
| Molecular Weight | 266.38 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| 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.) | 1982 |
Recommended Standards
- 1,3-Bis(3,5-dimethylphenyl)propan-1-one (CAS 898780-72-8)
- 11-(Pyrrolidin-1-yl)-7,8,9,10-tetrahydro-6H-cyclohepta[b]quinoline (CAS 5782-93-4)
- 1,3-Bis(3,4-dimethylphenyl)propan-1-one (CAS 898779-44-7)
- 1-Benzhydryl-1,4-diazepane (CAS 30486-56-7)
- 2-(3,5-Dimethyl-1H-pyrazol-1-yl)-N,N-diethyl-2H-azepin-7-amine (CAS 193151-02-9)
- 3-(Morpholine-4-carbonyl)-7-oxabicyclo[2.2.1]Hept-5-ene-2-carboxylic acid (CAS 57958-21-1)
- 1-(6-Bromo-5-methoxypyridin-3-yl)ethan-1-one (CAS 1256821-65-4)
- 6-bromo-2-(trifluoromethyl)-[1,2,4]triazolo[1,5-a]pyridine (CAS 1159812-99-3)
- 3-Phenylmethoxybenzonitrile (CAS 61147-43-1)
- 2-(1-(Pyridin-4-yl)piperidin-4-yl)acetic acid hydrochloride (CAS 168077-31-4)
- 3-Bromo-6-ethylpicolinic acid (CAS 2585650-20-8)
- Crisaborole impurity 152 (CAS CATO-C4X-2021152)
- 2-(Benzyloxy)-4-methylaniline hydrochloride (CAS 142769-31-1)
- Semaglutide Impurity 4 (CAS CATO-C4X-22264)
Why CATO?
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