Ranitidine EP Impurity G CAS 148639-72-9
| CAS No. | 148639-72-9 |
| Molecular Formula | C5H9N3OS |
| Molecular Weight | 159.21 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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 supplies Ranitidine EP Impurity G (CAS 148639-72-9), a pharmacopoeial impurity reference standard (molecular formula C5H9N3OS, MW 159.21 g/mol) used for the identification and quantification of trace impurities in APIs.
The molecular framework of Ranitidine EP Impurity G (C5H9N3OS) is characterized by an amide group, sulfur-containing functionality, 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.
As a certified reference material (CRM), Ranitidine EP Impurity G 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 | C5H9N3OS |
| Molecular Weight | 159.21 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1999 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Ranitidine Standards
- Ranitidine Impurity N1 (CAS 15433-79-1)
- Ranitidine Impurity 24 (CAS 13623-94-4)
- Ranitidine Impurity 11 (CAS 102721-76-6)
- Ranitidine Impurity N6 (CAS 1197-40-6)
- Ranitidine Impurity 13 (CAS 66357-40-2)
- Ranitidine Impurity 23 (CAS CATO-C4X-137023)
- Ranitidine Impurity 20 (CAS 82301-45-9)
- Ranitidine Impurity 14 (CAS 84167-82-5)
Recommended Standards
- (R)-4-acetylthio-2-oxo-pyrrolidinone (CAS 142705-97-3)
- 3-(1-Hydroxyethyl)-4-methyl-1H-1,2,4-triazole-5(4H)-thione (CAS 149762-19-6)
- (S)-S-(5-oxopyrrolidin-3-yl) ethanethioate (CAS 141629-12-1)
- (S)-3-(1-Hydroxyethyl)-4-methyl-1H-1,2,4-triazole-5(4H)-thione (CAS 149762-20-9)
- Bumetanide Impurity 38 (CAS CATO-C4X-198638)
- Mupirocin Calcium EP Impurity E (CAS 71087-96-2)
- Pirfenidone Impurity 36 (CAS 53427-80-8)
- (E)-3-(4-Bromophenyl)-2-cyanoacrylamide (CAS 104127-29-9)
- 7-amino-5-(2-chlorophenyl)-1,3,4,5-tetrahydro-2H-benzo[e][1,4]diazepin-2-one (CAS CATO-C3D-262417)
- (R)-2-(tert-butoxycarbonyl)-6-hydroxy-1,2,3,4-tetrahydroisoquinoline-1-carboxylic acid (CAS 2089671-79-2)
- Gadoterate Meglumine (CAS 92943-93-6)
- 2-(3'-Methyl-[1,1'-biphenyl]-4-yl)acetic acid (CAS 296777-83-8)
- Tert-butyl (2-(4-fluorophenyl)-2-hydroxyethyl)carbamate (CAS 864539-93-5)
- Semaglutide Impurity 129 (CAS 2490269-79-7)
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