5-(Methylthio)-1-phenyl-1H-tetrazole CAS 1455-92-1
| CAS No. | 1455-92-1 |
| Molecular Formula | C8H8N4S |
| Molecular Weight | 192.24 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.
5-(Methylthio)-1-phenyl-1H-tetrazole (CAS 1455-92-1), molecular formula C8H8N4S and molecular weight 192.24 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality, 5-(Methylthio)-1-phenyl-1H-tetrazole is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 192.24 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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.
Physical & Chemical Properties
| Molecular Formula | C8H8N4S |
| Molecular Weight | 192.24 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
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Recommended Standards
- 1-(4-Amino-3-thiocyanatophenyl)ethanone (CAS 14505-89-6)
- 5-(5-Methylpyridin-3-yl)-1,3,4-thiadiazol-2-amine (CAS 1480493-24-0)
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- 5-Acetamido-4H-1,2,4-triazole-3-sulfonyl chloride (CAS 129879-85-2)
- (6-Methyl-5-oxo-2,3-dihydro-5H-[1,3]thiazolo[3,2-a]pyrimidin-3-yl)acetic acid (CAS 1105190-72-4)
- 2,6-Diphenylpyridin-3-amine (CAS 56568-39-9)
- (S)-3-amino-2-(4-(trifluoromethyl)benzyl)propanoic acid (CAS 1260610-19-2)
- (Z)-N-(2-(6-Oxopyridazin-1(6H)-yl)ethyl)-2-phenylethene-1-sulfonamide (CAS 1021206-44-9)
- Amyloid b/A4 Protein Precursor770 (394-410) (H-2594.0001) (CAS 148914-01-6)
- 1-(2-(Piperazin-1-yl)pyrimidin-5-yl)ethan-1-one (CAS 1240293-02-0)
- 4'-(Aminomethyl)-[1,1'-biphenyl]-2-carbonitrile hydrochloride (CAS 124807-10-9)
- 1-(3-(2-Methoxyphenoxy)propyl)-2-methyl-1H-indole-3-carbaldehyde (CAS 640254-42-8)
- D-Leu26-Tirzepatide (CAS CATO-CPTD788908)
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