Methanesulfonic acid, (1R)-1-methylpropyl ester CAS 66194-68-1
| CAS No. | 66194-68-1 |
| Molecular Formula | C5H12O3S |
| Molecular Weight | 152.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Methanesulfonic acid, (1R)-1-methylpropyl ester (CAS 66194-68-1) is a high-purity analytical reference standard with the molecular formula C5H12O3S and a molecular weight of 152.21 g/mol.
Methanesulfonic acid, (1R)-1-methylpropyl ester (C5H12O3S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions.
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), Methanesulfonic acid, (1R)-1-methylpropyl ester 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 | C5H12O3S |
| Molecular Weight | 152.21 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 0.0 |
| CAS Registry Year (est.) | 1975 |
| Sulfur Atoms | 1 |
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Recommended Standards
- Ethyl propane-1-sulfonate (CAS 91284-43-4)
- S-methyl benzothioate (CAS 5925-68-8)
- Cyclopropyl(thiophen-2-yl)methanone (CAS 6193-47-1)
- 1996-44-7 2,4-DIFLUOROBENZENE-1-THIOL 2,4-DIFLUOROBENZENETHIOL 2,4-DIFLUOROTHIOPHENOL 2,4-Difluorothiophenol(--2,4-Difluorobenzenethiol AS05520 BENZENETHIOL, 2,4-DIFLUORO- (CAS 1996-44-7)
- (2S)-2-[(4-chlorophenyl)amino]propanoic acid (CAS 103678-25-7)
- 1,1,1-Trifluoroheptadecan-2-one (CAS 141022-99-3)
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- 2-(2-Bromoethoxy)-1-fluoro-4-methylbenzene (CAS 1342644-48-7)
- 7-Chlorokynurenic acid, 98% (CAS 18000-24-3)
- Ethyl 2-methyl-5-oxotetrahydro-2H-pyran-2-carboxylate (CAS 2050691-66-0)
- (2,4-Dichloro-5-(difluoromethyl)pyridin-3-yl)methanol (CAS 1806830-60-3)
- 2-(4-(3-Chloro-5-(trifluoromethyl)pyridin-2-yl)piperazin-1-yl)-2-methylpropanamide (CAS 338754-00-0)
- 5-Bromo-2-ethoxy-4-methylpyridine (CAS 610279-04-4)
- D-Ile12-Tirzepatide (CAS CATO-CPTD788921)
Why CATO?
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