Sulfasalazine EP Impurity G HCl CAS 1391062-37-5 (free base)
| CAS No. | 1391062-37-5 (free base) |
| Molecular Formula | C29H22N6O7S2 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Structurally, Sulfasalazine EP Impurity G HCl (C29H22N6O7S2HCl) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 21.0, corresponding to approximately 21 ring(s) or double-bond equivalent(s). With a molecular weight of 667.11 g/mol, it falls into the high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO supplies Sulfasalazine EP Impurity G HCl (CAS 1391062-37-5 (free base)), a pharmacopoeial impurity reference standard (molecular formula C29H22N6O7S2HCl, MW 667.11 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.
As a certified reference material (CRM), Sulfasalazine EP Impurity G HCl 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 | C29H22N6O7S2 HCl |
| Molecular Weight | 667.11 g/mol |
| Purity | >90% |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 21.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 6 |
| Sulfur Atoms | 2 |
Related Sulfasalazine Standards
- Sulfasalazine EP Impurity I (CAS 1310803-27-0)
- Sulfasalazine-D4 (CAS 1346606-50-5)
- Sulfasalazine Impurity 2 (RRT 0.75) (CAS 139-56-0)
- Sulfasalazine EP Impurity E (CAS 1391062-34-2)
- Sulfasalazine EP Impurity E Trisodium Salt (CAS 1391062-34-2 (free acid))
- Sulfasalazine EP Impurity A (CAS 1391062-35-3)
- Sulfasalazine EP Impurity G (CAS 1391062-37-5)
- Sulfasalazine EP Impurity G Disodium Salt (CAS 1391062-37-5 (free acid))
Recommended Standards
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- 5-(4-Butylphenyl)-6-chloro-N-cyclopentyl-2-methylpyrimidin-4-amine (CAS 917895-67-1)
- 2-((5-Cyano-4-(trifluoromethyl)-[2,4'-bipyridin]-6-yl)thio)-N-(4-methyloxazol-2-yl)acetamide (CAS 625378-11-2)
- 2-Chloro-4-ethoxynicotinic acid (CAS 1628845-26-0)
- (3-Chloro-4-(2-(4-ethylpiperazin-1-yl)ethoxy)phenyl)boronic acid (CAS 1704074-31-6)
- Crustacean Cardioactive Peptide (CAS 107090-96-0)
Why CATO?
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