Sorbic acid Impurity 6 CAS CATO-C4X-24236
| CAS No. | CATO-C4X-24236 |
| Molecular Formula | C13H14O6 |
| Molecular Weight | 266.25 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Sorbic acid Impurity 6 (CAS CATO-C4X-24236), a pharmacopoeial impurity reference standard (molecular formula C13H14O6, MW 266.25 g/mol) used for the identification and quantification of trace impurities in APIs.
The molecular framework of Sorbic acid Impurity 6 (C13H14O6) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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.
As a certified reference material (CRM), Sorbic acid Impurity 6 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 | C13H14O6 |
| Molecular Weight | 266.25 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
Related Sorbic Standards
- Sorbic Acid Impurity 3 (CAS 84173-36-4)
- Sorbic acid impurity 3 (CAS 18778-81-9)
- 5-Methyl-sorbic Acid Ethyl Ester (CAS 10231-96-6)
- Sorbic Acid Impurity 2 (CAS 14202-27-8)
- Sorbic acid impurity 2 (CAS 51830-12-7)
- Sorbic acid impurity 5 (CAS 2396-84-1)
- Sorbic Chloride (CAS 2614-88-2)
- Sorbic acid impurity 1 (CAS 145374-95-4)
Recommended Standards
- Pentoxifylline Impurity 14 (CAS 6493-07-8)
- Piperazine Impurity 64 (CAS 5854-18-2)
- Doxofylline impurity 45 (CAS 96474-41-8)
- Ataluren Impurity 7 (CAS 775303-92-9)
- Flurbiprofen Impurity 69 (CAS CATO-C4X-144469)
- Emedastine Impurity 37 (CAS 122484-65-5（free base）)
- Cefotiam Impurity 7 (CAS 61607-66-7)
- (3Z)-3-[(Phenylamino)methylidene]-1-(pyrimidin-2-yl)pyrrolidin-2-one (CAS 1164461-84-0)
- (1S,2R)-5-(4-chloro-1H-imidazo[4,5-c]pyridin-1-yl)-3-(hydroxymethyl)cyclopent-3-ene-1,2-diol (CAS 105522-08-5)
- 1,3-Dibromo-2-difluoromethoxy-5-fluorobenzene (CAS 1804515-20-5)
- (2s)-1-{[(3-bromophenyl)methyl]carbamoyl}pyrrolidine-2-carboxylic acid (CAS 1308992-27-9)
- 3-([1,1'-Biphenyl]-4-ylsulfonyl)propanoic acid (CAS 20025-59-6)
- 3-((3-Chlorophenyl)sulfonyl)-6,7-difluoro-1-(3-fluorobenzyl)quinolin-4(1H)-one (CAS 1326845-99-1)
- Tirzepatide Impurity 21 X TFA Salt (CAS CATO-C4X-324021)
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