Azathioprine Impurity 9 CAS 1190008-04-8
| CAS No. | 1190008-04-8 |
| Molecular Formula | C3[13C]2H4N3[15N]S |
| Molecular Weight | 155.16 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| 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 Azathioprine Impurity 9.
CATO supplies Azathioprine Impurity 9 (CAS 1190008-04-8), a pharmacopoeial impurity reference standard (molecular formula C3[13C]2H4N3[15N]S, MW 155.16 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C3[13C]2H4N3[15N]S, Azathioprine Impurity 9 contains a nitrile group, sulfur-containing functionality; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 155.16 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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 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 Azathioprine Impurity 9 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 | C3[13C]2H4N3[15N]S |
| Molecular Weight | 155.16 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1989 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Related Azathioprine Standards
- Azathioprine EP Impurity B (CAS 157930-13-7)
- Azathioprine EP Impurity B (CAS 50-44-2)
- Azathioprine Impurity 21 (CAS 30467-02-8)
- Azathioprine EP Impurity D (CAS 6339-54-4)
- Azathioprine Impurity 12 (CAS 1192-53-6)
- Azathioprine Impurity N4 (CAS 5167-18-0)
- Azathioprine EP Impurity C (CAS 4897-25-0)
- Azathioprine Impurity 8 (CAS 50-66-8)
Recommended Standards
- Quinoxaline-5-carbonitrile (CAS 77130-32-6)
- Atrazine-Desisopropyl-2-Hydroxy (CAS 7313-54-4)
- Quinoxaline-2-carbonitrile (CAS 7483-33-2)
- Methamidophos-N-Methyl (CAS 28167-49-9)
- Nisoldipine Impurity 1 (CAS 2226462-71-9)
- Tolvaptan Impurity 82 (CAS 1306528-12-0)
- Oxybuprocaine Hydrochloride EP Impurity C (CAS 2374-03-0)
- 5-Bromo-N-cyclopentylpyrimidin-2-amine (CAS 1207293-60-4)
- 4-Cyclopropoxy-N-methyl-6-sulfamoylnicotinamide (CAS 1243380-09-7)
- 4-Iodo-2-trifluoromethoxyphenylisothiocyanate (CAS 886501-55-9)
- Prop-2-yn-1-yl pyrimidine-5-carboxylate (CAS 139584-78-4)
- 1-(7-(2-Fluorophenyl)-1,4-thiazepan-4-yl)-3-(furan-2-yl)prop-2-en-1-one (CAS 1706508-00-0)
- O-isopropyl 3-methylbutanethioate (CAS 34322-06-0)
- Semaglutide impurity 23 (CAS CATO-C4X-222623)
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