2-chloropropanedioic acid dimethyl ester 28868-76-0 A819643 dimethyl 2-chloranylpropanedioate CAS 28868-76-0
| CAS No. | 28868-76-0 |
| Molecular Formula | C5H7ClO4 |
| Molecular Weight | 166.56 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-chloropropanedioic acid dimethyl ester 28868-76-0 A819643 dimethyl 2-chloranylpropanedioate (CAS 28868-76-0), molecular formula C5H7ClO4 and molecular weight 166.56 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 2-chloropropanedioic acid dimethyl ester 28868-76-0 A819643 dimethyl 2-chloranylpropanedioate (C5H7ClO4) is characterized by a carbohydrate-derived structure, chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
As a certified reference material (CRM), 2-chloropropanedioic acid dimethyl ester 28868-76-0 A819643 dimethyl 2-chloranylpropanedioate 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 | C5H7ClO4 |
| Molecular Weight | 166.56 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1965 |
| Halogen Content | Cl-containing |
Recommended Standards
- Glycoloyl Chloride Ethyl Carbonate (CAS 858255-52-4)
- 5-Chloropyrimido[4,5-c]pyridazine (CAS 1086393-04-5)
- 6-Cyanonicotinoyl chloride (CAS 313350-44-6)
- 4-Chloropyrimido[5,4-d]pyrimidine (CAS 1260672-48-7)
- Peryleno[1,12-bcd]thiophene (CAS 31473-75-3)
- Tert-butyl 8-amino-4-fluoro-3,3a,8,8a-tetrahydroindeno[1,2-c]pyrrole-2(1H)-carboxylate (CAS 1824557-05-2)
- Dimethyl2,5-dicyanoterephthalate (CAS 41573-40-4)
- (R)-Finerenone Impurity (CAS 1050477-30-9)
- Isopropyl 3,6-dichloropyridazine-4-carboxylate (CAS 1505966-87-9)
- 4-(4-Bromo-1h-pyrazol-1-yl)-2-(trifluoromethyl)benzene-1-carboximidamide dihydrochloride (CAS 1423029-46-2)
- 9-Allyl-N-cyclopropyl-9H-purin-6-amine (CAS 648881-72-5)
- Ethyl 4-hydroxy-6-methoxy-2-methylquinoline-3-carboxylate (CAS 88960-43-4)
- 5-(Bromomethyl)-2-iodophenol (CAS 1823881-56-6)
- [3-31]-Semaglutide D (CAS C152H230N42O47)
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