(4S)-2-Methyl-4-Thiazolidinecarboxylic Acid CAS 205985-91-7
| CAS No. | 205985-91-7 |
| Molecular Formula | C5H9NO2S |
| Molecular Weight | 147.20 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including (4S)-2-Methyl-4-Thiazolidinecarboxylic Acid.
(4S)-2-Methyl-4-Thiazolidinecarboxylic Acid (CAS 205985-91-7), molecular formula C5H9NO2S and molecular weight 147.20 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, (4S)-2-Methyl-4-Thiazolidinecarboxylic Acid is typically white to off-white liquid. Its solid-state physicochemical attributes — including a molecular weight of 147.20 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
As a certified reference material (CRM), (4S)-2-Methyl-4-Thiazolidinecarboxylic Acid 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 | C5H9NO2S |
| Molecular Weight | 147.20 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 2015 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Recommended Standards
- (3S,5S)-3,5-Diaminohexanoic acid (CAS 34281-55-5)
- (R)-2-Mercaptopyrrolidine-2-carboxylic acid (CAS 255052-61-0)
- (2S,3S)-3-Mercaptopyrrolidine-2-carboxylic acid (CAS 79068-22-7)
- (R)-3-Methylthiazolidine-4-carboxylic acid (CAS 60129-40-0)
- 2-Chloro-6-fluoronicotinic acid (CAS 1211533-26-4)
- 4-Bromo-2-[(2Z)-2-(4-chlorophenyl)-2-(methoxyimino)ethyl]-5-(diethylamino)-2,3-dihydropyridazin-3-one (CAS 477860-48-3)
- tert-butyl 5-oxo-2-azaspiro[3.4]octane-2-carboxylate (CAS 1581683-57-9)
- 2-[(4-Chlorophenyl)amino]-4-(4-nitrophenyl)-6-oxo-1,6-dihydropyrimidine-5-carbonitrile (CAS 1348555-04-3)
- 2-[2,6-Bis(1-methylethyl)phenyl]-3,3,6,8-tetramethyl-2-azoniaspiro[4.5]deca-1,7-diene (CAS 1160555-04-3)
- 6-Bromo-2-(2,5-dimethylphenyl)quinoline-4-carboxylic acid (CAS 371136-06-0)
- (S)-2-Amino-N-((S)-1-amino-5-guanidino-1-oxopentan-2-yl)-5-guanidinopentanamide (CAS 63277-12-3)
- 6-Bromohexyltriethylammonium Bromide (CAS 161097-76-3)
- 1-(2-(Aminomethyl)phenyl)-2,2,2-trifluoroethan-1-amine (CAS 886368-78-1)
- Des-Gln24-Tirzepatide (CAS CATO-CPTD788949)
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