Thiamine Impurity 13 CAS 582-36-5
| CAS No. | 582-36-5 |
| Molecular Formula | C12H16N3O2S |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Thiamine Impurity 13 (CAS 582-36-5), molecular formula C12H16N3O2SCl and molecular weight 301.79 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C12H16N3O2SCl, Thiamine Impurity 13 contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 301.79 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C12H16N3O2S Cl |
| Molecular Weight | 301.79 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Thiamine Standards
- Thiamine Impurity 30 (CAS 100502-51-0)
- Thiamine Nitrate EP Impurity G (CAS 1037-29-2)
- Thiamine Impurity 11 (CAS 105070-51-7)
- Thiamine /Vitamin B1 Impurity 50 (CAS 10553-88-5)
- Thiamine /Vitamin B1 Impurity 54 Ammonium Salt (CAS 10553-88-5 (free form))
- Thiamine EP Impurity F (CAS 10593-44-9)
- Thiamine disulfide (dinitrate) (CAS 109125-52-2)
- Thiamine Impurity 54 (CAS 1124-01-2)
Recommended Standards
- 7,8-Dihydroxy-2-(2-hydroxyphenyl)-4H-chromen-4-one (CAS 263407-44-9)
- Amidosulfuron D6 (dimethoxy D6) (CAS CATO-CCPD102187)
- 1-(bromomethyl)-3-(propan-2-yloxy)benzene (CAS 184970-27-2)
- (3E,5E)-6-(Dimethylamino)-1,1,1-trifluoro-4-(4-fluoroanilino)-3,5-hexadien-2-one (CAS 338393-25-2)
- (3-(Bicyclo[1.1.1]Pentan-1-yl)phenyl)methanol (CAS 1823894-02-5)
- trans-Haloperidol N-Oxide (CAS 150214-93-0)
- (2R)-Methyl 5-methoxytetrahydrofuran-2-carboxylate (CAS 195067-08-4)
- 4-(5-((2-(Benzyl(methyl)amino)-4-oxo-4H-pyrido[1,2-a]pyrimidin-3-yl)methylene)-4-oxo-2-thioxothiazolidin-3-yl)butanoic acid (CAS 469879-37-6)
- 3-[4-(Morpholinylmethyl)phenyl]-3-oxopropanenitrile (CAS 494772-88-2)
- D-allo-Thr7-Semaglutide (CAS CATO-C4X-2226242)
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