4-Amino-2-fluorobenzene-1-thiol CAS 15178-52-6
| CAS No. | 15178-52-6 |
| Molecular Formula | C6H6FNS |
| Molecular Weight | 143.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Amino-2-fluorobenzene-1-thiol (CAS 15178-52-6), molecular formula C6H6FNS and molecular weight 143.18 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrile group, sulfur-containing functionality, fluorine substitution, an aromatic ring system, 4-Amino-2-fluorobenzene-1-thiol is typically off-white to pale yellow liquid. Its solid-state physicochemical attributes — including a molecular weight of 143.18 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.
As a certified reference material (CRM), 4-Amino-2-fluorobenzene-1-thiol meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C6H6FNS |
| Molecular Weight | 143.18 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1961 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
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Recommended Standards
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- Potassium 1-(2,3-Epoxypropoxy)-4-naphthol Sulfate (CAS 95648-12-7)
- Poly[(9,9-di-n-octylfluorenyl-2,7-diyl)-alt-2,2'-bithiophene-5,5'-diyl)] (CAS 210347-56-1)
- N-(6-hydroxyhexyl)-6-carboxamidofluoresceindipivalate (CAS 467455-27-2)
- (R)-azepane-2-carboxylic acid (CAS 66865-36-9)
- (4Z)-4-{[(5-chloro-2-hydroxyphenyl)amino]methylidene}-1-methyl-3-(trifluoromethyl)-4,5-dihydro-1H-pyrazol-5-one (CAS 320425-04-5)
- 1-(Pyrazin-2-yl)azetidine-3-carboxylic acid (CAS 1342386-90-6)
- 5-Bromo-4-(difluoromethyl)pyrimidin-2-amine (CAS 1785472-42-5)
- Semaglutide impurity 92 (CAS CATO-C4X-222692)
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