3-Methylbenzo[d]isothiazol-5-ol CAS 73437-07-7
| CAS No. | 73437-07-7 |
| Molecular Formula | C8H7NOS |
| Molecular Weight | 165.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C8H7NOS, 3-Methylbenzo[d]isothiazol-5-ol contains a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 165.21 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
3-Methylbenzo[d]isothiazol-5-ol (CAS 73437-07-7), molecular formula C8H7NOS and molecular weight 165.21 g/mol, is a CATO reference standard with documented purity and traceability.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 3-Methylbenzo[d]isothiazol-5-ol under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C8H7NOS |
| Molecular Weight | 165.21 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| 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.) | 1977 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Methylbenzo Standards
- 3-Methylbenzo[d]isothiazol-4-ol (CAS 1187732-47-3)
- 3-Methylbenzo[d]oxazole-2(3H)-thione (CAS 13673-63-7)
- 2-Methylbenzo[d]oxazole-5-thiol (CAS 1536837-46-3)
- 2-Methylbenzo[d]thiazol-7-ol (CAS 163298-71-3)
- 3-Methylbenzo[d]isothiazol-6-ol (CAS 192443-26-8)
- 1-Methylbenzo[c]isothiazol-3(1H)-one (CAS 23310-36-3)
- 2-Methylbenzo[d]thiazol-5-ol (CAS 68867-14-1)
- 2-Methylbenzo[d]thiazol-6-ol (CAS 68867-18-5)
Recommended Standards
- 3-Methyl-4-thiocyanatophenol (CAS 3774-54-7)
- 3-Methylbenzo[d]thiazol-2(3H)-one (CAS 2786-62-1)
- 3-Hydroxy-4-(methylamino)tetrahydrothiophene 1,1-dioxide (CAS 66419-61-2)
- 3-Methylthieno[3,2-c]pyridin-4-ol (CAS 690635-71-3)
- [4-(2-Fluoro-5-methylphenyl)phenyl]acetic acid (CAS 1375068-96-4)
- N-(3-Cyano-4,5-dimethylthiophen-2-yl)-2-(4-(ethylthio)phenyl)acetamide (CAS 942008-17-5)
- 3-(2-Bromophenyl)-N-((4-(thiophen-2-yl)tetrahydro-2H-pyran-4-yl)methyl)propanamide (CAS 1798027-60-7)
- Methyl 3-bromo-2-fluoro-2-methylpropanoate (CAS 4161-54-0)
- Hirullin (CAS 131147-81-4)
- N-Methyl-4-(4-piperidyl)benzamide (CAS 161610-09-9)
- 6-Amino-9-benzyl-9h-purine-8-thiol (CAS 202135-85-1)
- (1R,5S)-6-ethynyl-3-oxabicyclo[3.1.0]Hexane (CAS 2306252-60-6)
- Flomoxef Impurity 5 (CAS 134237-56-2)
- Semaglutide Impurity 166 (CAS 1395881-03-4)
Why CATO?
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