2,4-Dichlorophenyl ethyl hydrogen phosphate CAS 77939-80-1
| CAS No. | 77939-80-1 |
| Molecular Formula | C8H9Cl2O4P |
| Molecular Weight | 271.03 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
2,4-Dichlorophenyl ethyl hydrogen phosphate (CAS 77939-80-1), molecular formula C8H9Cl2O4P and molecular weight 271.03 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 2,4-Dichlorophenyl ethyl hydrogen phosphate (C8H9Cl2O4P) contains a phosphate ester group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 3.5, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 271.03 g/mol, it falls into the medium-molecular-weight range. 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).
CATO manufactures 2,4-Dichlorophenyl ethyl hydrogen phosphate under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C8H9Cl2O4P |
| Molecular Weight | 271.03 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 3.5 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1979 |
| Halogen Content | Cl-containing |
Related Dichlorophenyl Standards
- 1-(3,4-Dichlorophenyl)-5-methyl-1h-pyrazole-3-carboxylic acid (CAS 1020724-32-6)
- 1-[(3,4-dichlorophenyl)methyl]-1h-pyrazole-4-carboxylic acid (CAS 1035224-56-6)
- 5-(3,4-Dichlorophenyl)-1h-pyrazole-3-carbohydrazide (CAS 1046160-16-0)
- 2-(2,4-Dichlorophenyl)-N-(4h-1,2,4-triazol-3-yl)acetamide (CAS 1050774-60-1)
- 5-(2,4-Dichlorophenyl)-2-furohydrazide (CAS 1216144-12-5)
- 1-(2,4-dichlorophenyl)-5-methyl-1H-pyrazole-3-carboxylic acid (CAS 126067-48-9)
- 2-(4-(3,4-Dichlorophenyl)-1H-pyrazol-1-yl)acetic acid (CAS 1267250-16-7)
- 3-(2,4-Dichlorophenyl)-1-methyl-1H-pyrazole-5-carboxylic acid (CAS 133113-04-9)
Recommended Standards
- 1-Bromo-4-(difluoromethoxy)-3-fluoro-2-methoxybenzene (CAS 2090859-76-8)
- 2,6-Dichloro-9-(2,2,2-trifluoroethyl)-9H-purine (CAS 2453323-38-9)
- 1-Bromo-2-methoxy-4-(trifluoromethoxy)benzene (CAS 848360-85-0)
- 2-Bromo-1-methoxy-4-(trifluoromethoxy)benzene (CAS 200956-14-5)
- 4-Hydroxy-3-methoxy-2-methylbenzaldehyde (CAS 18102-32-4)
- Ethyl 3-(3-piperidinylmethoxy)benzoatehydrochloride (CAS 1220027-82-6)
- N-(2,3-dichlorophenyl)-2-(m-tolylthio)acetamide (CAS 882079-96-1)
- 6-Ethoxy-5-methylpyridin-3-ol (CAS 1881331-45-8)
- 5Z,8Z,11Z,14Z-eicosatetraenoicacid,(1R)-1-[[[(2-aminoethoxy)hydroxyphosphinyl]oxy]methyl]-2-[(1-oxooctadecyl)oxy]ethylester 61216-62-4 (CAS 61216-62-4)
- 2-[(2-Ethyl-1-piperidinyl)methyl]-4-fluoroaniline (CAS 1156225-85-2)
- 1-Bromo-5-difluoromethoxy-3-fluoro-2-nitrobenzene (CAS 1804910-35-7)
- (R)-2-((tert-Butoxycarbonyl)amino)-2-(tetrahydro-2H-pyran-4-yl)acetic acid (CAS 1251903-95-3)
- 5-Nitro-6-oxo-1,6-dihydropyridine-3-carbonitrile (CAS 320405-84-3)
- Antifreeze Polypeptide 6 (winter flounder) trifluoroacetate salt (CAS 122604-16-4)
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