Ethyl 5-amino-1,2,3-thiadiazole-4-carboxylate CAS 6440-02-4
| CAS No. | 6440-02-4 |
| Molecular Formula | C5H7N3O2S |
| Molecular Weight | 173.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Ethyl 5-amino-1,2,3-thiadiazole-4-carboxylate (C5H7N3O2S) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Ethyl 5-amino-1,2,3-thiadiazole-4-carboxylate (CAS 6440-02-4), molecular formula C5H7N3O2S and molecular weight 173.19 g/mol, is a CATO reference standard with documented purity and traceability.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO manufactures Ethyl 5-amino-1,2,3-thiadiazole-4-carboxylate 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 | C5H7N3O2S |
| Molecular Weight | 173.19 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 |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Ethyl Standards
- Ethyl 5-amino-1,2,4-thiadiazole-3-carboxylate (CAS 150056-39-6)
- 3-(5-Amino-1,3,4-thiadiazol-2-yl)propanoic acid (CAS 66030-27-1)
- 4-amino-3-Pyridinesulfonamide (CAS 75903-62-7)
- 5-Amino-2-(methylsulfanyl)-4,6-pyrimidinediol (CAS 884861-16-9)
- Ethyl 4-amino-1,2,5-thiadiazole-3-carboxylate (CAS 499999-36-9)
- Ethyl 5-amino-1,3,4-thiadiazole-2-carboxylate (CAS 64837-53-2)
- Methyl 2-amino-2-(3-fluorobicyclo[1.1.1]pentan-1-yl)acetate (CAS 1934370-58-7)
- 2-((4-Amino-4H-1,2,4-triazol-3-yl)thio)acetamide (CAS 74599-38-5)
Recommended Standards
- ethyl 2-hydroxy-1,3-thiazole-4-carboxylate (CAS 56417-52-8)
- Methyl 2-((1H-1,2,4-triazol-5-yl)thio)acetate (CAS 24127-59-1)
- Ethyl 1,2,3-thiadiazol-5-ylcarbamate (CAS 2039-12-5)
- Methyl 2-(hydroxymethyl)thiazole-5-carboxylate (CAS 59855-91-3)
- Tert-Butyl 4-(4-(hydroxymethyl)-1H-1,2,3-triazol-1-yl)piperidine-1-carboxylate (CAS 1229516-67-9)
- N,n-diphenyl-cinnamamide (CAS 50395-70-5)
- Methyl 4-(3-aminophenyl)-1-methylpyrrolidine-3-carboxylate (CAS 1706448-97-6)
- 1-(4-Chloro-2-fluorophenyl)-3-(4-methoxyphenyl)propan-1-one (CAS 898776-19-7)
- [3-(2,5-dihydro-1H-pyrrol-1-yl)phenyl]methanamine (CAS 1333867-40-5)
- N-(2-Hydroxyethyl)-1H-1,2,4-triazole-5-carboxamide (CAS 401827-17-6)
- 3-Amino-6-methylpyrazin-2(1H)-one (CAS 43029-20-5)
- 2-Methyl-2-(pyrrolidin-2-yl)propan-1-ol (CAS 1781804-57-6)
- 3-Butyl-2,6-diphenylpyrimidine-4(3H)-thione (CAS 113848-42-3)
- Semaglutide Impurity 163 (x TFA Salt) (CAS CATO-C4X-2226163)
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