Benzo[c][1,2,5]thiadiazole-4,7-dicarbaldehyde CAS 5170-67-2
| CAS No. | 5170-67-2 |
| Molecular Formula | C8H4N2O2S |
| Molecular Weight | 192.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Benzo[c][1,2,5]thiadiazole-4,7-dicarbaldehyde (CAS 5170-67-2), molecular formula C8H4N2O2S and molecular weight 192.19 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C8H4N2O2S, Benzo[c][1,2,5]thiadiazole-4,7-dicarbaldehyde 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 192.19 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C8H4N2O2S |
| Molecular Weight | 192.19 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
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- 1-(3-Chloro-5-(trifluoromethyl)pyridin-2-yl)-1H-imidazole-2-thiol (CAS 339276-66-3)
- 1-Bromo-4-(2-bromo-1-(2,2,2-trifluoroethoxy)ethyl)benzene (CAS 1250196-83-8)
- Paraben Impurity 5 (CAS CATO-C4X-25695)
- 4-Pyrimidinamine, 2-chloro-N-[4-chloro-3-(trifluoromethyl)phenyl]-5-fluoro- (CAS 575473-54-0)
- 4-Chloro-1-propyl-1H-pyrazole-3-carbonitrile (CAS 1708380-18-0)
- 4-(4-Methanesulfonylpiperazin-1-yl)-4-oxobutanoic acid (CAS 899019-04-6)
- Neuropeptide S (human) (CAS 412938-67-1)
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