Biotin impurity 29 CAS CATO-C4X-156329
| CAS No. | CATO-C4X-156329 |
| Molecular Formula | C10H15N3O4S |
| Molecular Weight | 273.31 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, Biotin impurity 29 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 273.31 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
Biotin impurity 29 (CAS CATO-C4X-156329) is a certified pharmaceutical impurity reference standard with the molecular formula C10H15N3O4S and a molecular weight of 273.31 g/mol.
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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C10H15N3O4S |
| Molecular Weight | 273.31 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Biotin Standards
- Biotin Impurity 15 (CAS 56859-26-8)
- Biotin impurity 02 (CAS 87573-52-2)
- Biotin EP Impurity H (Mixture of Diastereomers) (CAS 2714810-33-8)
- Biotin impurity 34 (CAS 99147-44-1)
- Biotin impurity 35 (CAS 1374019-64-3)
- Biotin Sulfone (CAS 40720-05-6)
- Biotin Impurity 1((+)-Biotin (+)-Sulfoxide) (CAS 10406-89-0)
- Biotin impurity 19 (CAS 23015-53-4)
Recommended Standards
- Bumetanide Impurity 120 (CAS CATO-C4X-1986120)
- Rosuvastatin impurity 245 (CAS 147118-41-0)
- Carbocisteine Impurity 57 (CAS CATO-C4X-201057)
- Ticagrelor impurity 100 (CAS CATO-C4X-1093100)
- Difelikefalin Impurity 58 (CAS CATO-C4X-304158)
- Esomeprazole Impurity 45 (CAS 37466-89-0)
- Vinpocetine Impurity 20 (CAS 38990-16-8)
- 5-Cyclopropoxy-6-(dimethylamino)picolinaldehyde (CAS 1243329-88-5)
- 2-Chloro-5-methyl-1,3-dinitrobenzene (CAS 5264-65-3)
- 7,7-Dimethyl-2-(phenylamino)-7,8-dihydroquinazolin-5(6H)-one (CAS 925015-54-9)
- 5-Methyl-3,4-dinitro-1h-pyrazole (CAS 38859-00-6)
- 3-Amino-N-(2,6-dichlorophenyl)-6-(pyridin-3-yl)thieno[2,3-b]pyridine-2-carboxamide (CAS 625370-72-1)
- 1-Isopropylnaphthalene (CAS 6158-45-8)
- Semaglutide impurity 22(OtBu-Ste-γGlu(OtBu)-AEEA-AEEA-OH) (CAS 1118767-16-0)
Why CATO?
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