2-(5,7-Dioxo-5,7-dihydro-pyrrolo[3,4-b]pyridin-6-yl)-ethanesulfonyl chloride hydrochloride CAS 1421457-99-9
| CAS No. | 1421457-99-9 |
| Molecular Formula | C9H7ClN2O4S |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
2-(5,7-Dioxo-5,7-dihydro-pyrrolo[3,4-b]pyridin-6-yl)-ethanesulfonyl chloride hydrochloride (CAS 1421457-99-9) is a high-purity analytical reference standard with the molecular formula C9H7ClN2O4SHCl and a molecular weight of 311.13 g/mol.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution, 2-(5,7-Dioxo-5,7-dihydro-pyrrolo[3,4-b]pyridin-6-yl)-ethanesulfonyl chloride hydrochloride is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 311.13 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C9H7ClN2O4S HCl |
| Molecular Weight | 311.13 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Dioxo Standards
- 3-(1,3-Dioxo-2,3,3a,4,7,7a-hexahydro-1H-isoindol-2-yl)propanenitrile (CAS 100060-32-0)
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- 1-methyl-2,4-dioxo-1,2,3,4-tetrahydropyrido[2,3-d]pyrimidine-7-carboxylic acid (CAS 1000933-15-2)
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Recommended Standards
- Methyl 4-(methylamino)-2-(methylthio)pyrimidine-5-carboxylate (CAS 1823882-97-8)
- 3-(2-(Thietan-3-ylamino)ethyl)imidazolidine-2,4-dione (CAS 1873234-73-1)
- 1-(1,3,5-trimethyl-1H-pyrazol-4-yl)propan-2-amine (CAS 1007461-83-7)
- (2-Fluorophenyl)thiourea (CAS 656-32-6)
- 3-Ethyl-3-hexene (CAS 16789-51-8)
- 1-Propyl-1,3-dihydro-2H-benzo[d]imidazole-2-thione (CAS 67624-25-3)
- 2-Amino-4-methoxy-3-methylbenzonitrile (CAS 923274-68-4)
- 2-Chloro-5-(perfluoroethyl)pyridine (CAS 118559-21-0)
- (R)-5-Amino-3-((tert-butoxycarbonyl)amino)-5-oxopentanoic acid (CAS 1263377-30-5)
- D-Ser39-Tirzepatide (CAS CATO-CPTD788694)
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