Carbocisteine Impurity 51 CAS CATO-C4X-201051
| CAS No. | CATO-C4X-201051 |
| Molecular Formula | C6H11NO4S |
| Molecular Weight | 193.22 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Owing to an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, Carbocisteine Impurity 51 is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 193.22 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.
CATO supplies Carbocisteine Impurity 51 (CAS CATO-C4X-201051), a pharmacopoeial impurity reference standard (molecular formula C6H11NO4S, MW 193.22 g/mol) used for the identification and quantification of trace impurities in APIs.
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
CATO manufactures Carbocisteine Impurity 51 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 | C6H11NO4S |
| Molecular Weight | 193.22 g/mol |
| Purity | ≥95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 2.0 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Carbocisteine Standards
- Carbocisteine Impurity 50 (CAS CATO-C4X-201050)
- Carbocisteine Impurity 4(Mixture of diastereomers) (CAS 5439-87-2)
- Carbocisteine Impurity 52 (CAS CATO-C4X-201052)
- Carbocisteine (R)-S-Oxide (CAS 61475-35-2)
- Carbocisteine (S)-S-Oxide (CAS 112246-66-9)
- Carbocisteine Impurity 43 (CAS CATO-C4X-201043)
- Carbocisteine-d3 (CAS CATO-C4X-20105)
- Carbocisteine-13C3 (CAS 1391068-19-1)
Recommended Standards
- Benzo[d]thiazole-6-carbohydrazide (CAS 1005205-15-1)
- S-(2-Carboxyethyl)-L-cysteine (CAS 4033-46-9)
- 4-Amino-6-(thiophen-2-yl)pyridazin-3(2H)-one (CAS 1018299-56-3)
- 915923-87-4 5-Methyl-2-(thiophen-2-yl)-1,3-oxazole-4-carbaldehyde DTXSID70650819 (CAS 915923-87-4)
- Nintedanib Impurity 112 (CAS CATO-C4X-1814112)
- Phenytoin EP Impurity A (CAS 119-61-9)
- Rebamipide Impurity 59 (CAS CATO-C4X-152359)
- N-(4-BRomophenyl)-3-hydroxybenzamide (CAS 92905-58-3)
- tert-Butyl (2-chlorothiazol-5-yl)carbamate (CAS 1379344-91-8)
- Methyl (3R,4S)-4-phenylpyrrolidine-3-carboxylate hydrochloride (CAS 1820569-37-6)
- (2S)-2,6-Diamino-5-(((2R,3R,4S,5R,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)oxy)hexanoic acid (CAS 32448-36-5)
- 2-tert-Butyloxycarbonylaminomethyl-5-(4-(trifluoromethyl)phenyl)-[1,3,4]oxadiazole (CAS 1053656-77-1)
- 1-(1-Methyl-1H-pyrrol-2-yl)-2-(phenylsulfonyl)-1,2-dihydroisoquinoline (CAS 93971-12-1)
- Autocamtide-2-Related Inhibitory Peptide TFA (CAS 167114-91-2（free base）)
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