(S)-3-Chloro-2-hydroxypropanoic acid CAS 82079-44-5
| CAS No. | 82079-44-5 |
| Molecular Formula | C3H5ClO3 |
| Molecular Weight | 124.52 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies (S)-3-Chloro-2-hydroxypropanoic acid (CAS 82079-44-5), a certified reference material (molecular formula C3H5ClO3, MW 124.52 g/mol) for analytical method development and quality control.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, (S)-3-Chloro-2-hydroxypropanoic acid is typically white to off-white liquid. Its solid-state physicochemical attributes — including a molecular weight of 124.52 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.
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.
Physical & Chemical Properties
| Molecular Formula | C3H5ClO3 |
| Molecular Weight | 124.52 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) | 1.0 |
| CAS Registry Year (est.) | 1980 |
| Halogen Content | Cl-containing |
Related S Standards
- 2-Chloro-3-hydroxypropanoic acid (CAS 138250-73-4)
- (2R)-3-chloro-2-hydroxy-propanoic acid (CAS 61505-41-7)
- (2-Chloro-2-fluorocyclopropyl)methanol (CAS 41641-22-9)
- 3-Chloro-4-fluoro-2-butanone (CAS 86727-59-5)
- 4-Chloro-1,3-butanediol (CAS 145873-44-5)
- 1-Chloro-3-methoxy-2-propanol (CAS 4151-97-7)
- 3-Chloro-2-methylpropane-1,2-diol (CAS 597-33-1)
- 1-Chloro-5-Fluoropentane (CAS 407-98-7)
Recommended Standards
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- 3-(2,4,6-Trimethoxyphenyl)propanoic acid (CAS 74737-05-6)
- 4'-(Methylthio)-[1,1'-biphenyl]-4-carboxylic acid (CAS 728918-90-9)
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- 4-Allylheptafluorotoluene (CAS 253882-74-5)
- (2S)-dimethyl 8-acetyl-6-hydroxy-3,3a,8,8a-tetrahydropyrrolo[2,3-b]indole-1,2(2H)-dicarboxylate (CAS 79465-86-4)
- 2228-98-0 Cyclohexene, 4-tert-butyl- (8CI) Cyclohexene, 4-(1,1-dimethylethyl)- (9CI) 4-tert-Butylcyclohexene 4-tert-Butyl-1-cyclohexene NSC 143533 (CAS 2228-98-0)
- 5'-Chloro-2',3'-dihydrospiro[azetidine-2,1'-indene] (CAS 1934841-09-4)
- Semaglutide Impurity 144 (CAS 394210-59-4)
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