Thioctic Acid Impurity 9 CAS 25636-58-2
| CAS No. | 25636-58-2 |
| Molecular Formula | C8H14O2S |
| Molecular Weight | 174.26 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Thioctic Acid Impurity 9 is closely related to 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.
As a process- or degradation-related impurity, Thioctic Acid Impurity 9 (CAS 25636-58-2, C8H14O2S) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Structurally, Thioctic Acid Impurity 9 (C8H14O2S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 2.0, corresponding to approximately 2 ring(s) or double-bond equivalent(s). With a molecular weight of 174.26 g/mol, it falls into the medium-molecular-weight range.
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
CATO manufactures Thioctic Acid 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 | C8H14O2S |
| Molecular Weight | 174.26 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1964 |
| Sulfur Atoms | 1 |
Related Thioctic Standards
- Thioctic acid Impurity 35 (CAS 74903-53-0)
- Thioctic Acid Impurity 49 (CAS 120476-62-2)
- Thioctic acid Impurity 91 (CAS CATO-C4X-152691)
- Thioctic Acid Impurity 22 (CAS 3884-52-4)
- Thioctic acid Impurity 90 (CAS 1795-62-6)
- Thioctic acid Impurity 33 (CAS 50628-92-7)
- Thioctic Acid Impurity 48 (CAS 2975-17-9)
- Thioctic Acid Impurity 50 (CAS CATO-C4X-152650)
Recommended Standards
- OBI166S5VM 7471-03-6 2-Amino-4-hydroxybenzothiazole Benzothiazole, 2-amino-4-hydroxy- 4-Benzothiazolol, 2-amino- (9CI) 4-27-00-05445 (Beilstein Handbook Reference) BRN 0136771 4-Hydroxy-2-aminobenzothiazole NSC 403535 UNII-OBI166S5VM (CAS 7471-03-6)
- 4-Methyl-1-piperazinecarbothioic acid hydrazide (CAS 15970-51-1)
- 5535-48-8 Benzene, (ethenylsulfonyl)- NSC-35394 NSC35394 Phenyl vinyl sulfone Sulfone, phenyl vinyl URI 744 (CAS 5535-48-8)
- 4-Methoxy-|A,|A-dimethyl-1,4-cyclohexadiene-1-methanol-d6 (CAS 1794795-30-4)
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- Diethyl phenethylamidophosphate (CAS 57673-91-3)
- Gly-Neuroendocrine Regulatory Peptide-3 (human, mouse, rat) trifluoroacetate salt (CAS 1815618-19-9)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com