o-Tolyltetrazolium Red CAS 33926-00-0
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 33926-00-0 |
| Molecular Formula | C20H17N4 Cl |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
o-Tolyltetrazolium Red (CAS 33926-00-0) is a pharmaceutical standards certified reference material from CATO. Molecular formula: C20H17N4 Cl. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C20H17N4 Cl |
| Molecular Weight | 348.83 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1966 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
Related o Standards
Recommended Standards
- (2-Bromobenzyl)(3,5-difluorophenyl)sulfane (CAS 1443347-52-1)
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- 6-chloro-7-fluoro-4-oxo-chromene-2-carboxylic acid (CAS 865451-02-1)
- RA8VU41B1F 77-98-5 Tetraethylammonium hydroxide Ethanaminium, N,N,N-triethyl-, hydroxide Ethanaminium, N,N,N-triethyl-, hydroxide (1:1) AI3-24479 Ammonium, tetraethyl-, hydroxide EINECS 201-073-3 Tetraethyl ammonium hydroxide UNII-RA8VU41B1F EC 201-073-3 (CAS 77-98-5)
- Tert-butyl (R)-2-(cyanomethyl)morpholine-4-carboxylate (CAS 2137423-90-4)
- (R)-4-(1-Methoxy-1H-indol-3-yl)-2-methylbutan-1-ol (CAS 97399-94-5)
- Semaglutide（sodium salt） (CAS CATO-C4X-222619)
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