Methyl 3-chloro-2-oxopropanoate CAS 922-19-0
| CAS No. | 922-19-0 |
| Molecular Formula | C4H5ClO3 |
| Molecular Weight | 136.53 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 136.53 g/mol gives Methyl 3-chloro-2-oxopropanoate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies Methyl 3-chloro-2-oxopropanoate (CAS 922-19-0), a certified reference material (molecular formula C4H5ClO3, MW 136.53 g/mol) for analytical method development and quality control.
Based on its molecular formula C4H5ClO3, Methyl 3-chloro-2-oxopropanoate contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic functional-group stretching vibrations in infrared spectroscopy. The molecular weight of 136.53 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.
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), Methyl 3-chloro-2-oxopropanoate 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 | C4H5ClO3 |
| Molecular Weight | 136.53 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.) | 1957 |
| Halogen Content | Cl-containing |
Related Methyl Standards
- 3-Chloro-2-oxobutanoic acid (CAS 142521-41-3)
- Methyl 2-chloro-3-oxopropanoate (CAS 20656-61-5)
- (E)-2-chloro-N-((hydroxyamino)methylene)acetamide (CAS 1785917-18-1)
- (2-Chloro-acetyl)-urea (CAS 4791-21-3)
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Recommended Standards
- (Chloroformyl)acetic Acid Methyl Ester 3-Chloro-3-oxopropionic Acid Methyl Ester 37517-81-0 M2315 Methyl (Chloroformyl)acetate Methyl 3-Chloro-3-oxopropionate Methyl Malonyl Chloride (CAS 37517-81-0)
- Ethyl chlorooxoacetate (CAS 4755-77-5)
- Apixaban Impurity 104 (CAS 5819-34-1)
- Chloroacetic Acetic AnhydrideDISCONTINUED (CAS 4015-58-1)
- (1R,3R,8AS)-1-METHYL-3-PHENYLTETRAHYDRO-3H-OXAZOLO[3,4-A]PYRAZINE-5,8-DIONE (CAS 249611-05-0)
- 2-(piperazin-1-ylmethyl)-5-(thiophen-2-yl)-3H,4H-thieno[2,3-d]pyrimidin-4-one (CAS 900640-91-7)
- Benzo[d][1,2,3]oxadiazole-7-carboxylic acid (CAS 1546503-21-2)
- 5-(1-Methyl-1H-pyrazol-5-yl)-1,3,4-oxadiazol-2-amine (CAS 1204297-14-2)
- 1-(3,4-Dichlorothiophen-2-yl)ethan-1-one (CAS 57681-58-0)
- (6-amino-4-fluoro-3-pyridyl)boronic acid (CAS 2304634-61-3)
- 6’-Chloro-2’-methoxyacetophenone (CAS 881883-32-5)
- 11-Ketoprogesterone (CAS 516-15-4)
- 4-Chloro-2-methyl-7-phenylthieno[3,2-d]pyrimidine (CAS 1267382-72-8)
- Liraglutide (CAS 204656-20-2)
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