Methacryloyl Chloride (stabilized with MEHQ) CAS 920-46-7
| CAS No. | 920-46-7 |
| Molecular Formula | C4H5ClO |
| Molecular Weight | 104.53 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 104.53 g/mol gives Methacryloyl Chloride (stabilized with MEHQ) distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Methacryloyl Chloride (stabilized with MEHQ) (CAS 920-46-7) is a high-purity analytical reference standard with the molecular formula C4H5ClO and a molecular weight of 104.53 g/mol.
Methacryloyl Chloride (stabilized with MEHQ) (C4H5ClO) contains a hydroxyl group, an ether linkage, chlorine substitution. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
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 | C4H5ClO |
| Molecular Weight | 104.53 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) | 2.0 |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Cl-containing |
Related Methacryloyl Standards
Recommended Standards
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- N-(3-acetylphenyl)-2-(benzylthio)benzamide (CAS 341954-04-9)
- N-(5-Amino-2-(octyloxy)phenyl)acetamide (CAS 13724-16-8)
- 7,7-Difluorobicyclo[4.1.0]Heptan-3-ol (CAS 2171984-79-3)
- MGCD 516 (CAS 1123837-84-2)
- (3-Chlorophenyl)(7-phenyl-1,4-thiazepan-4-yl)methanone (CAS 1797637-33-2)
- Cimetidine EP Impurity B (CAS 138035-55-9)
- tert-butyl N-{4-[2-(trimethylsilyl)ethynyl]phenyl}carbamate (CAS 317842-68-5)
- semaglutide (CAS 782487-28-9)
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