5-Mercapto-4H-1,2,4-triazol-3-ol CAS 503-89-9
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 503-89-9 |
| Molecular Formula | C2H3N3OS |
| Molecular Weight | 117.13 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-Mercapto-4H-1,2,4-triazol-3-ol (CAS 503-89-9) is a pharmaceutical standards certified reference material from CATO. Molecular formula: C2H3N3OS. Molecular weight: 117.13 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C2H3N3OS |
| Molecular Weight | 117.13 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.) | 1957 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Mercapto Standards
- 3-Mercapto-2-pentanone (CAS 67633-97-0)
- 2-Mercapto-N,N-dimethylacetamide (CAS 35331-24-9)
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- 2-Mercapto-3-methyl-1-butanol (CAS 116229-37-9)
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- 3-Mercapto-3-methyl-1-butanol (CAS 34300-94-2)
- (2S)-3-Mercapto-1,2-Propanediol (CAS 120785-95-7)
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Recommended Standards
- 5-Amino-2,3-dihydro-1,3,4-thiadiazol-2-one (CAS 33901-30-3)
- Thiazole-2,4-diol (CAS 62326-99-2)
- 5-Amino-1,2,4-thiadiazol-3(2H)-one (CAS 59221-06-6)
- 1,3-Dihydro-1,3-dioxo-2H-isoindol-2-yl octanoate (CAS 116709-91-2)
- 4-(2-Chlorophenyl)-2-methylthiomorpholine-3,5-dione (CAS 344265-74-3)
- 7-Methoxy-1,2-dimethyl-3,4-dioxo-1,2,3,4-tetrahydroisoquinoline-1-carbonitrile (CAS 87486-29-1)
- Mianserin impurity 43 (CAS 13665-04-8)
- 2-(1H-Imidazol-1-yl)-6-methoxy-N-(2-methoxyethyl)quinazolin-4-amine (CAS 548735-65-5)
- 2-Chloro-1,3,2-dioxaborolane (CAS 1192-03-6)
- Uremic Pentapeptide (CAS 71494-20-7)
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