6-Methoxybenzo[d]thiazol-2(3H)-one CAS 40925-65-3
| CAS No. | 40925-65-3 |
| Molecular Formula | C8H7NO2S |
| Molecular Weight | 181.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C8H7NO2S, 6-Methoxybenzo[d]thiazol-2(3H)-one contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 181.21 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).
6-Methoxybenzo[d]thiazol-2(3H)-one (CAS 40925-65-3), molecular formula C8H7NO2S and molecular weight 181.21 g/mol, is a CATO reference standard with documented purity and traceability.
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.
As a certified reference material (CRM), 6-Methoxybenzo[d]thiazol-2(3H)-one 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 | C8H7NO2S |
| Molecular Weight | 181.21 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; 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.) | 1968 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Methoxybenzo Standards
- 5-Methoxybenzo[d]thiazol-2(3H)-one, 97% (CAS 15193-51-8)
- 4-Methoxybenzo[d]thiazol-2(3H)-one (CAS 80567-66-4)
- 4-Methoxybenzo[d]thiazole-2,6-diamine 702636-35-9 (CAS 702636-35-9)
- (6-Methoxybenzo[d][1,3]dioxol-5-yl)methanamine (CAS 1250007-67-0)
- (7-Methoxybenzo[d][1,3]dioxol-5-yl)methanamine (CAS 478977-40-1)
- (7-Methoxybenzo[d][1,3]dioxol-5-yl)methanol (CAS 22934-59-4)
- 7-Methoxybenzo[d]thiazol-2-amine (CAS 1254300-95-2)
- 4-Methoxybenzo[d]isothiazol-3-amine (CAS 127952-01-6)
Recommended Standards
- 6-Mercapto-2H-benzo[b][1,4]oxazin-3(4H)-one (CAS 56077-77-1)
- 6-Methyl-2-thioxo-2,3-dihydro-1H-pyrrolo[2,3-d]pyrimidin-4(7H)-one (CAS 97337-17-2)
- 6-Hydroxy-2H-benzo[b][1,4]thiazin-3(4H)-one (CAS 91375-74-5)
- 7-Hydroxy-2H-benzo[b][1,4]thiazin-3(4H)-one (CAS 91375-75-6)
- N1-((1-(4-Fluorophenyl)cyclopropyl)methyl)-N2-(2,2,2-trifluoroethyl)oxalamide (CAS 1251561-25-7)
- 3-(4-(Tert-butyl)-2-methylphenoxy)propan-1-amine (CAS 1094540-89-2)
- Naphthalene-1,5-dicarbonitrile (CAS 13554-71-7)
- 3-Chloropyrazolo[1,5-a]pyridin-5-amine (CAS 1610021-26-5)
- Alclometasone Dipropionate Impurity 4 (CAS 76576-24-4)
- 2-Benzyl-3-hydroxynaphthalene-1,4-dione (CAS 15451-41-9)
- 5-Cyclopropoxy-2-isopropoxy-4-(methylthio)pyridine (CAS 1243379-94-3)
- (trans,trans)-3,4,5-Trifluorophenyl 4'-ethyl-[1,1'-bi(cyclohexane)]-4-carboxylate (CAS 181943-55-5)
- Molybdenum hexacarbonyl (CAS 13939-06-5)
- Semaglutide Impurity 143 (CAS CATO-C4X-2226143)
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