Thiamine EP Impurity G CAS 3419-28-1
| CAS No. | 3419-28-1 |
| Molecular Formula | C14H19N4O2S |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Thiamine EP Impurity G.
Thiamine EP Impurity G (CAS 3419-28-1) is a high-purity analytical reference standard with the molecular formula C14H19N4O2SCl and a molecular weight of 342.84 g/mol.
Thiamine EP Impurity G (C14H19N4O2SCl) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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 analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures Thiamine EP Impurity G 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 | C14H19N4O2S Cl |
| Molecular Weight | 342.84 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
| 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
- Methyl 2-(4-methoxybenzyl)-1,2-thiazinane-3-carboxylate 1,1-dioxide (CAS 1956306-61-8)
- 4-(2-(Difluoromethoxy)phenyl)-1H-pyrrole-3-carbonitrile (CAS 87388-20-3)
- (S)-2-Amino-4-methoxybutanoic acid (CAS 3311-01-1)
- (S)-2-Amino-3-cyano-4-methyl-4,5,6,7-tetrahydrobenzo[b]thiophene-4-carboxylic acid (CAS 2749963-99-1)
- 1-Benzyl-6-oxo-1,6-dihydropyridazine-3-carboxylic acid (CAS 171673-00-0)
- 2-(Fluoromethyl)cyclobutane-1-carboxylic acid (CAS 1421602-02-9)
- Hydantoin Impurity 1 (CAS 6859-11-6)
- 2,7-Dimethyl-1H-indole-3-carboxylic acid (CAS 1227270-31-6)
- (2-Ethoxyethyl)(ethyl)amine (CAS 38256-95-0)
- Peptide 441 (CAS CATO-CPTD788441)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com