5-Isopropoxy-1,3,4-thiadiazol-2-amine CAS 16784-25-1
| CAS No. | 16784-25-1 |
| Molecular Formula | C5H9N3OS |
| Molecular Weight | 159.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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 supplies 5-Isopropoxy-1,3,4-thiadiazol-2-amine (CAS 16784-25-1), a certified reference material (molecular formula C5H9N3OS, MW 159.21 g/mol) for analytical method development and quality control.
The molecular framework of 5-Isopropoxy-1,3,4-thiadiazol-2-amine (C5H9N3OS) is characterized by an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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 | C5H9N3OS |
| Molecular Weight | 159.21 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1961 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
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Recommended Standards
- Methyl 3-amino-4,5-dihydrothiophene-2-carboxylate (CAS 167280-87-7)
- 5-Ethoxy-N-methyl-1,3,4-thiadiazol-2-amine (CAS 16784-32-0)
- (R)-1-Acetyl-4-mercaptopyrrolidin-2-one (CAS 162753-54-0)
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- N-((4-chlorophenyl)sulfonyl)-N-(p-tolyl)glycine (CAS 896897-91-9)
- 2-(4-(Trifluoromethyl)phenyl)thiazole-4-carbonyl chloride (CAS 857284-28-7)
- Rocuronium Impurity 48 (CAS 2562348-54-1)
- 2-Cyclopropyl-1,3-benzoxazol-5-amine (CAS 1017027-77-8)
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