1983-26-2 (Chloromethyl)phosphonic dichloride Phosphonic dichloride, P-(chloromethyl)- Phosphonic dichloride, (chloromethyl)- Chloromethane phosphoryl dichloride Chloromethanephosphonic acid dichloride Chloromethanephosphonyl dichloride Chloromethyl dichlorophosphine oxide (Chloromethyl)phosphonic acid dichloride (Chloromethyl)phosphonodichloridic acid Chloromethylphosphonyl dichloride Dichloro(chloromethyl)phosphine oxide Dichloro(chloromethyl)phosphonic acid EINECS 217-848-4 Monochloromethyl phosphonic dichloride NSC 9350 Phosphonic chloride, chloromethyl- CAS 1983-26-2
| CAS No. | 1983-26-2 |
| Molecular Formula | CH2Cl3OP |
| Molecular Weight | 167.36 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula CH2Cl3OP, 1983-26-2 (Chloromethyl)phosphonic dichloride Phosphonic dichloride, P-(chloromethyl)- Phosphonic dichloride, (chloromethyl)- Chloromethane phosphoryl dichloride Chloromethanephosphonic acid dichloride Chloromethanephosphonyl dichloride Chloromethyl dichlorophosphine oxide (Chloromethyl)phosphonic acid dichloride (Chloromethyl)phosphonodichloridic acid Chloromethylphosphonyl dichloride Dichloro(chloromethyl)phosphine oxide Dichloro(chloromethyl)phosphonic acid EINECS 217-848-4 Monochloromethyl phosphonic dichloride NSC 9350 Phosphonic chloride, chloromethyl- contains organophosphorus functionality, a hydroxyl group, chlorine substitution; these features give the compound characteristic functional-group stretching vibrations in infrared spectroscopy. The molecular weight of 167.36 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
1983-26-2 (Chloromethyl)phosphonic dichloride Phosphonic dichloride, P-(chloromethyl)- Phosphonic dichloride, (chloromethyl)- Chloromethane phosphoryl dichloride Chloromethanephosphonic acid dichloride Chloromethanephosphonyl dichloride Chloromethyl dichlorophosphine oxide (Chloromethyl)phosphonic acid dichloride (Chloromethyl)phosphonodichloridic acid Chloromethylphosphonyl dichloride Dichloro(chloromethyl)phosphine oxide Dichloro(chloromethyl)phosphonic acid EINECS 217-848-4 Monochloromethyl phosphonic dichloride NSC 9350 Phosphonic chloride, chloromethyl- (CAS 1983-26-2), molecular formula CH2Cl3OP and molecular weight 167.36 g/mol, is a CATO reference standard with documented purity and traceability.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
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 | CH2Cl3OP |
| Molecular Weight | 167.36 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | -0.5 |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Cl-containing |
Related Chloromethyl Standards
- 4-(Chloromethyl)-5-(difluoromethyl)oxazole (CAS 2006920-94-9)
- 5-(Chloromethyl)benzo[d]oxazole (CAS 1201648-09-0)
- 2-(Chloromethyl)-4-hydroxybenzonitrile (CAS 1261824-46-7)
- 6-(Chloromethyl)benzo[d]oxazole (CAS 1314982-48-3)
- 5-(Chloromethyl)furo[2,3-b]pyridine (CAS 160729-78-2)
- 4-(Chloromethyl)benzo[d]oxazole (CAS 1935479-66-5)
- 5-(Chloromethyl)-1H-pyrazolo[3,4-c]pyridine (CAS 1206979-08-9)
- 5-(Chloromethyl)-1H-pyrazolo[4,3-b]pyridine (CAS 1206980-45-1)
Recommended Standards
- RC4N1I108M 4039-32-1 Lithium bis(trimethylsilyl)amide Lithiumbis(trimethylsilyl)amide Silanamine, 1,1,1-trimethyl-N-(trimethylsilyl)-, lithium salt (1:1) Silanamine, 1,1,1-trimethyl-N-(trimethylsilyl)-, lithium salt Bis(trimethylsilyl)amido lithium Bis(trimethylsilyl)amidolithium Disilazane, 1,1,1,3,3,3-hexamethyl-, lithium salt EINECS 223-725-6 Hexamethyldisilazane lithium salt N-Lithiohexamethyldisilazane Lithium, (bis(trimethylsilyl)amino)- Lithium hexamethyldisilazane Lithium tris(trimethylsilyl)amine Lithiumbis(trimethylsilyl)amine NSC 252161 UNII-RC4N1I108M EC 223-725-6 (CAS 4039-32-1)
- 2,2,2-Trichloro-1,1-ethanediol-1,1-d2 (CAS 19220-07-6)
- N-(Trimethylsilyl)methanesulfonamide (CAS 999-96-2)
- Dichloromethanesulfinyl chloride (CAS 62479-74-7)
- 2-Hydroxy-3-propylhexanoic acid (CAS 1515602-22-8)
- 3-Chloro-5-iodobenzotrifluoride (CAS 1189352-83-7)
- (3-(Difluoromethoxy)-5-fluorophenyl)boronic acid (CAS 2055539-69-8)
- 3-Methyl-1-propyl-1h-pyrazole-4-sulfonamide (CAS 1481025-42-6)
- 5-(2-Bromoethoxy)-4-phenylisoxazole (CAS 194471-09-5)
- n-(Quinolin-3-yl)acetamide (CAS 5417-50-5)
- 1-(2-Chlorophenyl)-3-(m-tolyl)-1h-pyrazole-4-carboxylic acid (CAS 926205-17-6)
- 2,4-Dibromo-6-fluorobenzothiazole (CAS 1188139-53-8)
- Ethyl 2-fluoro-3-(trifluoromethyl)isonicotinate (CAS 1227603-80-6)
- Semaglutide impurity 274 (CAS CATO-C4X-2226274)
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