Thiamine /Vitamin B1 Impurity 44 CAS CATO-C4X-187344
| CAS No. | CATO-C4X-187344 |
| Molecular Formula | C7H8N4S |
| Molecular Weight | 180.23 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Thiamine /Vitamin B1 Impurity 44 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.
As a process- or degradation-related impurity, Thiamine /Vitamin B1 Impurity 44 (CAS CATO-C4X-187344, C7H8N4S) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C7H8N4S, Thiamine /Vitamin B1 Impurity 44 contains a nitrile group, sulfur-containing functionality, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 180.23 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
Physical & Chemical Properties
| Molecular Formula | C7H8N4S |
| Molecular Weight | 180.23 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Related Thiamine Standards
- Thiamine Impurity N1 (CAS 7403-34-1)
- Thiamine Impurity 54 (CAS 1124-01-2)
- Thiamine /Vitamin B1 Impurity 52 (CAS 252568-49-3)
- Thiamine Impurity 17 (CAS 73-66-5)
- Thiamine Impurity 33 (CAS 861031-76-7)
- Thiamine Impurity 37 (CAS 1698838-89-9)
- Thiamine Impurity 38 (CAS 1199782-58-5)
- Thiamine /Vitamin B1 Impurity 18 (CAS 1886-34-6)
Recommended Standards
- Omeprazole Impurity 39 (CAS CATO-C4X-125539)
- L-Methionine [R,S]-Sulfoximine (CAS 15985-39-4)
- Sildenafil Impurity 62 (CAS 116833-23-9)
- 2-(2-Isopropoxyphenyl)ethanol (CAS 1000505-33-8)
- Phenylephrine Impurity 28(Mixture of Diastereomers) (CAS CATO-C4X-146728)
- Vonoprazan Fumarate Impurity 58 (CAS 2054536-04-6)
- Esmolol Impurity 75 (CAS CATO-C4X-189175)
- 4-(4-Fluorophenyl)-5-(methylsulfonyl)thiazol-2-amine (CAS 1708289-32-0)
- 3-Iodo-4-(trifluoromethyl)benzaldehyde (CAS 372120-53-1)
- 1-Cyano-3-isopropylcyclobutane-1-carboxylic acid (CAS 1483985-79-0)
- 4-Methoxy-2-methyl-7-(trifluoromethyl)quinoline (CAS 881932-89-4)
- 1-(Benzo[d]thiazol-2-ylmethyl)cyclohexane-1-carboxylic acid (CAS 863669-59-4)
- 2-(4-(4-Chlorobenzyl)piperazin-1-yl)-1-(indolin-1-yl)ethan-1-one (CAS 240127-55-3)
- Semaglutide impurity 197 (CAS CATO-C4X-2226197)
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