5-Methoxybenzo[d]thiazole-2(3H)-thione CAS 55690-60-3
| CAS No. | 55690-60-3 |
| Molecular Formula | C8H7NOS2 |
| Molecular Weight | 197.28 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 5-Methoxybenzo[d]thiazole-2(3H)-thione 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.
CATO supplies 5-Methoxybenzo[d]thiazole-2(3H)-thione (CAS 55690-60-3), a certified reference material (molecular formula C8H7NOS2, MW 197.28 g/mol) for analytical method development and quality control.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, 5-Methoxybenzo[d]thiazole-2(3H)-thione is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 197.28 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.
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.
Physical & Chemical Properties
| Molecular Formula | C8H7NOS2 |
| Molecular Weight | 197.28 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.) | 1972 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 2 |
Related Methoxybenzo Standards
- 4-Methoxybenzo[d]thiazole-2-thiol (CAS 51793-98-7)
- 6-Methoxybenzo[d]thiazole-2(3H)-thione (CAS 2182-73-2)
- 7-Methoxybenzo[d]thiazole-2-thiol (CAS 908355-82-8)
- 3-Methoxybenzo[d]isothiazole 1,1-dioxide (CAS 18712-14-6)
- 6-Methoxybenzo[b]thiophene 1,1-dioxide (CAS 98733-09-6)
- ((7-Methoxybenzo[d][1,3]dioxol-5-yl)methyl)hydrazine (CAS 887593-36-4)
- 6-Methoxybenzo[d][1,3]dioxole-4-carboxylic acid (CAS 401811-79-8)
- 7-Methoxybenzo[d][1,3]dioxole-5-carboxylic acid (CAS 526-34-1)
Recommended Standards
- 5,7-dimethyl[1,3,4]thiadiazolo[3,2-a]pyrimidin-4-ium-2-thiolate (CAS 87253-83-6)
- 6H,7H,8H,9H,10H-Cyclohepta[b]quinoline (CAS 7092-81-1)
- 5-(Thiophen-2-ylmethyl)-1,3,4-thiadiazol-2-amine (CAS 299933-43-0)
- 5-(Pyridin-2-yl)-4,5-dihydro-1,3,4-thiadiazole-2-thiol (CAS 5757-43-7)
- 2,4-Difluoro-N-(2-methylpyrazolo[1,5-a]pyrimidin-6-yl)benzamide (CAS 1797014-76-6)
- 669705-42-4 Propanoic acid, 2-(4-ethylphenoxy)-, hydrazide (9CI) (CAS 669705-42-4)
- (E)-1-{3-[(2-Chloro-6-fluorobenzyl)oxy]phenyl}-3-(4-toluidino)-2-propen-1-one (CAS 478039-47-3)
- 3-[4-(3-azidopropylamino)-1-oxo-isoindolin-2-yl]piperidine-2,6-dione (CAS 2399455-71-9)
- 1-amino-2,3-dimethylpentan-2-ol (CAS 42328-58-5)
- (2R,3S,5R)-5-(2-Amino-6-(4-nitrophenethoxy)-9H-purin-9-yl)-2-(hydroxymethyl)tetrahydrofuran-3-ol (CAS 86137-72-6)
- 1-(4-Methoxyphenyl)-3-((2,3,4-trifluorophenyl)amino)propan-1-one (CAS 868255-55-4)
- 4-(3-Hydroxyphenyl)phenol (CAS 18855-13-5)
- N-(4-Fluorophenyl)-5-methyl-1-[3-(trifluoromethyl)phenyl]-1H-1,2,4-triazole-3-carboxamide (CAS 321431-44-1)
- Des-Ala21-Tirzepatide (CAS CATO-CPTD788952)
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