5,5'-(Benzo[c][1,2,5]thiadiazole-4,7-diylbis(ethyne-2,1-diyl))diisophthalicacid CAS 2049078-65-9
| CAS No. | 2049078-65-9 |
| Molecular Formula | C26H12N2O8S |
| Molecular Weight | 512.45 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 5,5'-(Benzo[c][1,2,5]thiadiazole-4,7-diylbis(ethyne-2,1-diyl))diisophthalicacid is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
5,5'-(Benzo[c][1,2,5]thiadiazole-4,7-diylbis(ethyne-2,1-diyl))diisophthalicacid (CAS 2049078-65-9), molecular formula C26H12N2O8S and molecular weight 512.45 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C26H12N2O8S, 5,5'-(Benzo[c][1,2,5]thiadiazole-4,7-diylbis(ethyne-2,1-diyl))diisophthalicacid 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 512.45 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C26H12N2O8S |
| Molecular Weight | 512.45 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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) | 22.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1997 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Benzo Standards
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Recommended Standards
- Methotrexate impurity 52 (CAS CATO-C4X-115452)
- Gentiournoside D (CAS 157722-21-9)
- 1,1,2,2-Tetrakis(4-nitrophenyl)ethene (CAS 47797-98-8)
- (2R,4R)-Pentane-2,4-diylbis(bis(4-fluorophenyl)phosphine) (CAS 500862-14-6)
- N-{2-[2-(sec-Butyl)phenoxy]ethyl}-3-(2-ethoxyethoxy)aniline (CAS 1040691-48-2)
- 4-(4-Ethoxyphenyl)-N-(pyridin-2-yl)thiazol-2-amine (CAS 1029783-80-9)
- 6,8-Dibromoisochromane (CAS 2437237-09-5)
- Ethyl 8-hydroxybicyclo[3.2.1]Octane-3-carboxylate (CAS 1420792-55-7)
- Methyl 6-acetamido-4-acetylpicolinate (CAS 1393546-63-8)
- 5-[(1R)-1,5-Dimethyl-4-hexen-1-yl]-2-methyl-3-cyclohexene-1,1-diol (CAS 915301-61-0)
- 4-(2-{[3-chloro-5-(trifluoromethyl)pyridin-2-yl]amino}ethyl)-2-(4-methylpiperazin-1-yl)-3H,4H-pyrido[2,3-b]pyrazin-3-one (CAS 338411-99-7)
- Ethoxyquin (CAS 91-53-2)
- 2,7-Dnitropyrene-4,5,9,10-tetraone (CAS 2151811-65-1)
- Insulin Degludec Impurity 24 (CAS CATO-C4X-215724)
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