2-Chloro-4-methoxybenzenethiol CAS 89793-44-2
| CAS No. | 89793-44-2 |
| Molecular Formula | C7H7ClOS |
| Molecular Weight | 174.65 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 2-Chloro-4-methoxybenzenethiol is closely related to sulfur-containing functionality, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
2-Chloro-4-methoxybenzenethiol (CAS 89793-44-2), molecular formula C7H7ClOS and molecular weight 174.65 g/mol, is a CATO reference standard with documented purity and traceability.
2-Chloro-4-methoxybenzenethiol (C7H7ClOS) contains sulfur-containing functionality, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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-Chloro-4-methoxybenzenethiol 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 | C7H7ClOS |
| Molecular Weight | 174.65 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1982 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Chloro Standards
- 2-Chloro-6-(ethylsulfanyl)pyrazine (CAS 1094842-83-7)
- 4-Chloro-2-(Sulfanylmethyl)phenol (CAS 118143-41-2)
- 1-(4-Chloro-5-methylthiophen-2-yl)ethan-1-one (CAS 123418-42-8)
- 2-Chloro-5-(methylthio)phenol (CAS 1243386-43-7)
- 5-Chloro-2-(ethylthio)pyrimidine (CAS 124595-96-6)
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- 1-Chloro-3-(methylsulfinyl)benzene (CAS 13150-73-7)
- 4-chloro-5-methyl-6-(methylthio)pyrimidine (CAS 1343398-23-1)
Recommended Standards
- 2-Chloro-3-methoxybenzenethiol (CAS 83119-62-4)
- 2-Chloro-4-methyl-6-(methylthio)pyrimidine (CAS 89466-59-1)
- 2-Chloro-1-(5-methyl-thiophen-2-yl)-ethanone (CAS 31772-42-6)
- 2-Chloro-5-((methylthio)methyl)pyrimidine (CAS 37795-43-0)
- (S)-2-(4-chloro-2-methylphenyl)-2-(methylamino)ethan-1-ol (CAS 1213972-50-9)
- Ethyl 4-ethoxy-2-oxocyclohex-3-ene-1-carboxylate (CAS 52466-50-9)
- 1-Cyclopropyl-N-((2-methoxypyridin-3-yl)methyl)ethan-1-amine (CAS 1178934-78-5)
- Avanafil Impurity 132 (CAS CATO-C4X-1118132)
- N-(2-Aminophenyl)-4-((6-fluoro-2H-indazol-2-yl)methyl)benzamide (CAS 920314-92-7)
- 2,4-Dipropoxybenzaldehyde (CAS 156744-09-1)
- 3-(5-Amino-1-ethyl-1H-benzoimidazol-2-yl)-propan-1-ol (CAS 879038-11-6)
- n-(Cyclopropylmethyl)-2-iodoaniline (CAS 1156168-62-5)
- 1-Methyl-4-(propylsulfinyl)benzene (CAS 21865-09-8)
- Pancreatic Polypeptide (rat) (CAS 90419-12-8)
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