Bis(2,4,6-trimethylphenyl)phosphorus chloride CAS 67950-05-4
| CAS No. | 67950-05-4 |
| Molecular Formula | C18H22ClP |
| Molecular Weight | 304.79 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Bis(2,4,6-trimethylphenyl)phosphorus chloride (CAS 67950-05-4) is a high-purity analytical reference standard with the molecular formula C18H22ClP and a molecular weight of 304.79 g/mol.
Owing to organophosphorus functionality, chlorine substitution, a polycyclic aromatic system, Bis(2,4,6-trimethylphenyl)phosphorus chloride is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 304.79 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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), Bis(2,4,6-trimethylphenyl)phosphorus chloride 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 | C18H22ClP |
| Molecular Weight | 304.79 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1976 |
| Halogen Content | Cl-containing |
Related Bis Standards
- 1,3-Bis(2,4,6-trimethylphenyl)-4,5-dihydroimidazole-2-ylidene (CAS 173035-11-5)
- 2-(2-Oxo-2-(2,4,5-trimethylphenyl)ethyl)isoindoline-1,3-dione (CAS 796999-91-2)
- 1,3-Bis(2,4,6-trimethylphenyl)-1H-imidazolium (CAS 160256-31-5)
- 2-(6-(2,4,5-Trimethylphenyl)thiazolo[3,2-b][1,2,4]triazol-5-yl)acetic acid (CAS 1437436-04-8)
- 1,3-Bis(2,4,6-trimethylphenyl)-1,3-propanedione (CAS 6477-29-8)
- 3-Methyl-6-(2,4,5-trimethylphenyl)imidazo[2,1-b]thiazole-2-carboxylic acid (CAS 1437434-45-1)
- 2-(3,4,5-trimethylphenyl)acetic acid (CAS 51719-67-6)
- 1,2-Bis(2,4,6-trimethylphenyl)ethylenediamine (CAS 422304-30-1)
Recommended Standards
- 7-Chloro-N-phenyl-2,3-dihydro-4H-benzo[b][1,4]thiazine-4-carboxamide (CAS 338777-97-2)
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- 7-Chloro-1-(4-methoxyphenyl)-2,3-dihydroquinazoline-4(1H)-thione (CAS 90070-94-3)
- Clotiazepam Impurity C17 (CAS 33671-37-3)
- 2-tert-Butyl 1-methyl 6-methoxy-3,4-dihydroisoquinoline-1,2(1H)-dicarboxylate (CAS 531556-16-8)
- 1-(2-Oxo-1-phenyl-5-thioxo-3-(m-tolyl)imidazolidin-4-ylidene)-3-(m-tolyl)urea (CAS 79174-50-8)
- 4-Chloro-2-ethoxy-6-(trifluoromethyl)pyrimidine (CAS 932701-91-2)
- 1-(4-(Trifluoromethyl)phenyl)-2,3,4,9-tetrahydro-1H-pyrido[3,4-b]indole hydrochloride (CAS 367251-31-8)
- (Z)-2-((4-chlorophenyl)thio)-N'-(2-cyanoacetyl)acetohydrazonamide (CAS 338395-65-6)
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- 3-(2,4-Dioxothiazolidin-3-yl)-N-(thiophen-2-ylmethyl)azetidine-1-carboxamide (CAS 1787879-88-2)
- Tirzepatide(sodium salt) (CAS 2023788-19-2(free base))
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