1,2,5-Triphenyl-1H-phosphole CAS 1162-70-5
| CAS No. | 1162-70-5 |
| Molecular Formula | C22H17P |
| Molecular Weight | 312.34 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 1,2,5-Triphenyl-1H-phosphole.
CATO supplies 1,2,5-Triphenyl-1H-phosphole (CAS 1162-70-5), a certified reference material (molecular formula C22H17P, MW 312.34 g/mol) for analytical method development and quality control.
Owing to organophosphorus functionality, a polycyclic aromatic system, 1,2,5-Triphenyl-1H-phosphole is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 312.34 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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), 1,2,5-Triphenyl-1H-phosphole 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 | C22H17P |
| Molecular Weight | 312.34 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 |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 14.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
Related Triphenyl Standards
- 1,4,5-Triphenyl-1H-pyrazol-3(2H)-one (CAS 5022-92-4)
- 2-Methyl-2,4,5-triphenyl-2H-imidazole (CAS 87880-13-5)
- 3,5,6-Triphenyl-1,4-dihydropyridazine (CAS 87439-77-8)
- 1,2,4-Triphenyl-1,4-butanedione (CAS 4441-01-4)
- Triphenyl phosphite (CAS 101-02-0)
- 3274-60-0 2-Methyl-3,4,5-triphenyl-1H-pyrrole DTXSID80501666 (CAS 3274-60-0)
- 3,5,6-Triphenyl-1,2,4-triazine (CAS 24108-44-9)
- 2,4,6-Triphenyl-1,3,5-triazine (CAS 493-77-6)
Recommended Standards
- 3-((1-Acetylindoline)-5-sulfonamido)propanoic acid (CAS 108583-90-0)
- 2-[(4-Phenoxyphenyl)amino]-1,3-thiazole-4-carboxylic acid (CAS 1176721-85-9)
- 2-Amino-4-(3-fluorophenyl)-7,7-dimethyl-5-oxo-5,6,7,8-tetrahydro-4H-chromene-3-carbonitrile (CAS 107752-98-7)
- 4-(4-Methoxyphenyl)-4H-benzo[b][1,4]thiazine-2-carbonitrile 1,1-dioxide (CAS 1207008-94-3)
- (Hydroxy(pyridin-2-yl)methyl)diphenylphosphine oxide (CAS 260446-76-2)
- 2-Chloro-N-(2-ethylphenyl)benzamide (CAS 196804-11-2)
- Primaquine - API Standards (CAS 90-34-6)
- 4-(Methylsulfonyl)phthalazin-1(2H)-one (CAS 62645-06-1)
- 4-Cyclopropoxy-6-fluoropicolinic acid (CAS 1243346-35-1)
- Benzyl 3-(piperazin-1-yl)azetidine-1-carboxylate (CAS 1823866-44-9)
- Sofosbuvir (CAS 1190307-88-0)
- (3-Aminopiperidin-1-yl)(2,5-dichlorophenyl)methanone (CAS 1831622-19-5)
- 25068-26-2 Poly(4-methyl-1-pentene) 1-Pentene, 4-methyl-, homopolymer (CAS 25068-26-2)
- MOTS-c Peptide (CAS 1627580-64-6)
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