3-(Methylthio)isothiazol-5-amine CAS 67209-07-8
| CAS No. | 67209-07-8 |
| Molecular Formula | C4H6N2S2 |
| Molecular Weight | 146.23 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies 3-(Methylthio)isothiazol-5-amine (CAS 67209-07-8), a certified reference material (molecular formula C4H6N2S2, MW 146.23 g/mol) for analytical method development and quality control.
Owing to a nitrile group, sulfur-containing functionality, 3-(Methylthio)isothiazol-5-amine is typically white to pale yellow liquid. Its solid-state physicochemical attributes — including a molecular weight of 146.23 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C4H6N2S2 |
| Molecular Weight | 146.23 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1976 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 2 |
Related Methylthio Standards
- 2-(Methylthio)thiazol-5-amine (CAS 91478-68-1)
- 5-(methylthio)thiazol-2-amine (CAS 99171-11-6)
- 2-(Methylthio)ethyl acrylate (CAS 4836-09-3)
- cis-4-(Methylthio)cyclohexan-1-ol (CAS 1246644-50-7)
- 3-((Methylthio)methyl)pyrrolidin-3-amine (CAS 125033-05-8)
- trans-4-(Methylthio)cyclohexan-1-ol (CAS 1375066-01-5)
- 2-((Methylthio)methyl)piperazine (CAS 910444-26-7)
- 2-Methyl-6-(methylthio)pyrazine (CAS 2884-13-1)
Recommended Standards
- 3-(2-Ethylphenyl)-1-propene (CAS 62826-22-6)
- 3-Ethyl-1,2,4-thiadiazole-5-thiol (CAS 63688-13-1)
- 3-(2,3-Dimethylphenyl)-1-propene (CAS 42918-22-9)
- 3-Phenyl-1-pentene (CAS 19947-22-9)
- Methyl 4-(2-imino-1,2-dihydropyrimidin-4-yl)benzoate (CAS 1706430-19-4)
- (2,4-Diethoxypyrimidin-5-yl)(p-tolyl)methanol (CAS 93538-19-3)
- [3-(4-fluorophenyl)-1-phenyl-1h-pyrazol-4-yl]methanamine (CAS 873312-95-9)
- Lithium aluminate (CAS 12003-67-7)
- 2-Chloro-5-hydroxy-6-oxo-1,6-dihydropyrimidine-4-carboxylic acid (CAS 1824642-99-0)
- 3-Ethyl-6,7-dimethylquinoxaline-2-carboxylic acid (CAS 2197063-27-5)
- (2E)-2-[(4-Chlorophenyl)methylidene]-4,4-dimethyl-3-oxopentanenitrile (CAS 958266-54-1)
- 3-[[(3E)-3-[(4-Chlorophenyl)phenylmethylene]-2,3-dihydro-2-oxo-1H-indol-1-yl]methyl]benzoic Acid (CAS 1273323-67-3)
- Amlexanox Impurity 8 (CAS CATO-C4X-21768)
- ([13C6]Leu14)-Glucagon (1-29) (human, rat, porcine) trifluoroacetate salt (CAS 1802078-39-2)
Why CATO?
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