L-Penicillamine CAS 1113-41-3
| CAS No. | 1113-41-3 |
| Molecular Formula | C5H11NO2S |
| Molecular Weight | 149.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of L-Penicillamine is closely related to an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies L-Penicillamine (CAS 1113-41-3), a certified reference material (molecular formula C5H11NO2S, MW 149.21 g/mol) for analytical method development and quality control.
The molecular framework of L-Penicillamine (C5H11NO2S) is characterized by an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures L-Penicillamine under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C5H11NO2S |
| Molecular Weight | 149.21 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) | 1.0 |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related L Standards
- D-Penicillamine (CAS 52-67-5)
- D-Penicillamine-d3 (CAS CATO-C4X-29234)
- L-Penicillamine-d6 (CAS 1795786-79-6)
- Penicillamine impurity 3 (CAS CATO-C4X-29233)
- Penicillamine Impurity 1 (CAS 4458-32-6)
- Penicillamine Impurity 1 (CAS 856846-79-2)
- Penicillamine Impurity 2 (CAS CATO-CP155169)
- DL-Penicillamine disulfide (CAS 312-10-7)
Recommended Standards
- 2-Methyl-4-sulfanylbenzonitrile (CAS 110888-21-6)
- 4-imino-2-methyl-1,4-oxathiane 4-oxide (CAS 1139698-82-0)
- 4-Mercapto-3-methylbenzonitrile (CAS 110888-18-1)
- 3-Aminotetrahydro-2H-thiopyran 1,1-dioxide (CAS 117593-43-8)
- 6-Bromo-2-(difluoromethyl)-5-iodopyridine-3-sulfonamide (CAS 1805422-83-6)
- (Z)-hex-3-en-1-yl cinnamate (CAS 68133-75-5)
- (3S)-3-amino-1-methylazepan-2-one (CAS 209983-96-0)
- trans-Diethyl-(2-hydroxyÂcycloÂhexylÂ)-amine (CAS 7432-60-2)
- 2-(2-Bromo-5-fluorophenoxy)acetonitrile (CAS 874804-05-4)
- 3-(Ethylsulfonyl)acrylic Acid (CAS 1704365-62-7)
- 2-(2,5-Difluorophenyl)pyrimidine-5-carboxylic acid (CAS 933988-75-1)
- 1-(2-Hydroxypropyl)-5-methylpyrimidine-2,4(1H,3H)-dione (CAS 62009-50-1)
- 2-[(4-Amino-3,5-dimethyl-1H-pyrazol-1-yl)methyl]benzoic acid (CAS 1338495-11-6)
- Tirzepatide Impurity 38 (CAS CATO-C4X-324038)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com