(R)-methyl 2-isocyanatopropanoate CAS 30293-81-3
| CAS No. | 30293-81-3 |
| Molecular Formula | C5H7NO3 |
| Molecular Weight | 129.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(R)-methyl 2-isocyanatopropanoate (CAS 30293-81-3), molecular formula C5H7NO3 and molecular weight 129.11 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, (R)-methyl 2-isocyanatopropanoate is typically white to pale yellow liquid. Its solid-state physicochemical attributes — including a molecular weight of 129.11 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
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 | C5H7NO3 |
| Molecular Weight | 129.11 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1965 |
| Nitrogen Atoms | 1 |
Recommended Standards
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- (S)-3,4-Dimethyloxazolidine-2,5-dione (CAS 58311-53-8)
- (R)-4-Ethyloxazolidine-2,5-dione (CAS 94426-02-5)
- (S)-4-Ethyloxazolidine-2,5-dione (CAS 29774-83-2)
- 2-Amino-1-((S)-2-((isopropyl(methyl)amino)methyl)piperidin-1-yl)propan-1-one (CAS 1354026-34-8)
- Methyl 2-oxo-1-((2-(trimethylsilyl)ethoxy)methyl)-2,3-dihydro-1H-pyrrolo[2,3-b]pyridine-4-carboxylate (CAS 1643461-07-7)
- N-(3-Isopropoxybenzyl)-2-propanamine (CAS 1040683-60-0)
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- 5-(2,2-Difluoropropoxy)pyrazine-2-carboxylic acid (CAS 1640975-43-4)
- 7-Chloro-4-fluoro-1H-indole (CAS 1000341-60-5)
- (2-(4-Methylpiperazin-1-yl)pyridin-3-yl)methanol (CAS 1225920-65-9)
- 2-(4-(Trifluoromethyl)phenyl)cyclopropane-1-carboxylic acid (CAS 2262-03-5)
- Tert-butyl 4-amino-4-(2-aminoethyl)piperidine-1-carboxylate (CAS 2167191-23-1)
- Semaglutide impurity 77 (CAS CATO-C4X-222677)
Why CATO?
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