3-(Diphenylphosphino)benzoic acid CAS 2129-30-8
| CAS No. | 2129-30-8 |
| Molecular Formula | C19H15O2P |
| Molecular Weight | 306.29 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 3-(Diphenylphosphino)benzoic acid.
3-(Diphenylphosphino)benzoic acid (CAS 2129-30-8), molecular formula C19H15O2P and molecular weight 306.29 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C19H15O2P, 3-(Diphenylphosphino)benzoic acid contains a steroid core, organophosphorus functionality, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 306.29 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
As a certified reference material (CRM), 3-(Diphenylphosphino)benzoic acid 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 | C19H15O2P |
| Molecular Weight | 306.29 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) | 12.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
Related Diphenylphosphino Standards
- 2-(Diphenylphosphino)benzoic Acid (CAS 17261-28-8)
- 2-(Diphenylphosphino)-5-hydroxybenzaldehyde (CAS 351418-52-5)
- (S)-2-(Diphenylphosphino)-1-phenylethanamine (CAS 1103533-85-2)
- (R)-2-(Diphenylphosphino)-1-phenylethanamine (CAS 141096-35-7)
- (R)-1-(2-(Diphenylphosphino)phenyl)ethanamine (CAS 192057-60-6)
- (S)-1-(2-(Diphenylphosphino)phenyl)ethanamine (CAS 913196-43-7)
- 2-(Diphenylphosphino)-1-phenylethanamine (CAS 2242399-86-4)
- 2-(Diphenylphosphino)-N,N-dimethylaniline (CAS 4358-50-3)
Recommended Standards
- 2-Methyl-11-oxo-10,11-dihydrobenzo[f]pyrrolo[1,2-b][1,2,5]thiadiazepine-8-carboxylic acid 5,5-dioxide (CAS 2243162-32-3)
- 4-(Dimethylamino)-2-((4-(trifluoromethyl)phenyl)amino)nicotinonitrile (CAS 338773-40-3)
- 2-{[(5E)-5-[(2H-1,3-benzodioxol-5-yl)methylidene]-4-oxo-4,5-dihydro-1,3-thiazol-2-yl]amino}acetic acid (CAS 865658-43-1)
- 4-Methyl-3-(3-nitrobenzamido)thiophene-2-carboxylic acid (CAS 866152-23-0)
- Xenazoic Acid (CAS 1174-11-4)
- (2E)-2-(Benzenesulfonyl)-3-[(quinolin-8-yl)amino]prop-2-enenitrile (CAS 1024776-64-4)
- NSC-33994 (CAS 82058-16-0)
- Butan-2-amine hydrochloride (CAS 10049-60-2)
- n-(Tert-butyl)-4-methoxy-2,4-dimethylpentan-1-amine (CAS 1478764-75-8)
- 2-(Cyclopropylmethoxy)-4-fluoroaniline hydrochloride (CAS 1333994-64-1)
- TC 1698 Dihydrochloride (CAS 787587-06-8)
- Ethyl 6-amino-2-fluoronicotinate (CAS 1806682-06-3)
- 1-α-D-Arabinofuranosyl-2-nitro-1H-imidazole (CAS 83416-40-4)
- Neuropeptide S (rat) (CAS 412938-75-1)
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