2-(Methylthio)phenyl isothiocyanate CAS 51333-75-6
| CAS No. | 51333-75-6 |
| Molecular Formula | C8H7NS2 |
| Molecular Weight | 181.28 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-(Methylthio)phenyl isothiocyanate (CAS 51333-75-6), molecular formula C8H7NS2 and molecular weight 181.28 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, 2-(Methylthio)phenyl isothiocyanate is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 181.28 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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), 2-(Methylthio)phenyl isothiocyanate 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 | C8H7NS2 |
| Molecular Weight | 181.28 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1971 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 2 |
Related Methylthio Standards
- 3-(Methylthio)phenyl isothiocyanate 1-isothiocyanato-3-methylsulfanyl-benzene 1-isothiocyanato-3-(methylsulfanyl)benzene 51333-80-3 (CAS 51333-80-3)
- 2-(Methylthio)Benzothiazole (CAS 615-22-5)
- 1-(4-(Methylthio)phenyl)propan-1-amine (CAS 1204749-80-3)
- (4-(2-(Methylthio)ethyl)phenyl)methanamine (CAS 1894762-79-8)
- 1-(4-(Methylthio)phenyl)guanidine (CAS 71198-45-3)
- 2-(Methylthio)-5,6,7,8-tetrahydropyrido[4,3-d]pyrimidine (CAS 944901-68-2)
- 4-(Methylthio)benzenepropanamine (CAS 83987-53-5)
- N-(4-(methylthio)phenyl)acetamide (CAS 10352-44-0)
Recommended Standards
- 2-(1-Ethyl-3,5-dimethyl-1h-pyrazol-4-yl)-N-methylethan-1-amine (CAS 956823-99-7)
- 2-Methyl-2-(methylsulfonyl)propanethioamide (CAS 2137602-48-1)
- 1-azido-4-tert-butylcyclohexane (CAS 31865-35-7)
- 2-Methyl-4-(2-thienyl)-1,3-thiazole (CAS 21036-67-9)
- (S)-3-(4-Iodophenyl)-2-(2,2,2-trifluoroacetamido)propanoic acid (CAS 115820-04-7)
- Quinoxaline-5,7-diamine (CAS 89977-47-9)
- (4-(2-Methoxyphenyl)piperazin-1-yl)(4-nitrophenyl)methanone (CAS 21091-99-6)
- Sodium 2-(4-nitrophenyl)acetate (CAS 7063-24-3)
- 1-(4-Bromo-2-fluorophenyl)-3-(4-(methylthio)phenyl)propan-1-one (CAS 898781-59-4)
- Linezolid Impurity 115 (CAS CATO-C4X-1073115)
- 4-Bromo-3-methylpicolinaldehyde (CAS 886372-15-2)
- 7,7-Difluoro-3-oxospiro[3.5]nonane-1-carboxylic acid (CAS 2648941-92-6)
- 2-(6-Chloro-4-(difluoromethyl)-5-nitropyridin-3-yl)acetic acid (CAS 1805272-30-3)
- Tau Peptide (294-305) (human) trifluoroacetate salt (CAS 1428135-29-8)
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