1-Chloro-7-isoquinolinesulphonamide CAS 223671-78-1
| CAS No. | 223671-78-1 |
| Molecular Formula | C9H7ClN2O2S |
| Molecular Weight | 242.68 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 1-Chloro-7-isoquinolinesulphonamide.
CATO supplies 1-Chloro-7-isoquinolinesulphonamide (CAS 223671-78-1), a certified reference material (molecular formula C9H7ClN2O2S, MW 242.68 g/mol) for analytical method development and quality control.
Structurally, 1-Chloro-7-isoquinolinesulphonamide (C9H7ClN2O2S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 242.68 g/mol, it falls into the medium-molecular-weight range. 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 | C9H7ClN2O2S |
| Molecular Weight | 242.68 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2020 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Chloro Standards
- 5-[(4-chloro-1h-pyrazol-1-yl)methyl]thiophene-2-carboxylic acid (CAS 1006455-24-8)
- 4-[(4-chloro-1h-pyrazol-1-yl)methyl]thiophene-2-carboxylic acid (CAS 1006485-93-3)
- 1-(2-Chloro-6-fluorobenzoyl)piperazine (CAS 1016491-13-6)
- 5-chloro-4-(1-methyl-1H-pyrazol-5-yl)thiophene-2-carboxylic acid (CAS 1047630-55-6)
- N-(5-Chloro-2-fluorophenyl)-2-(cyclopropylamino)acetamide (CAS 1184760-82-4)
- 2-Chloro-6,6-dioxo-5h,7h,8h-6lambda6-thiopyrano[4,3-b]pyridine-3-carbonitrile (CAS 1247793-72-1)
- 4-Chloro-7-(methylsulfonyl)quinazoline (CAS 1256955-28-8)
- 4-Chloro-6-(methylsulfonyl)quinazoline (CAS 1256955-37-9)
Recommended Standards
- 1-(4-Chloro-2-fluorobenzoyl)piperazine (CAS 926227-66-9)
- 2-((3-Chloro-4-fluorophenyl)amino)-N-cyclopropylacetamide (CAS 923191-44-0)
- 1-(2-Chloro-4-fluorobenzoyl)piperazine (CAS 926257-29-6)
- 2-((4-Chloro-2-fluorophenyl)amino)-N-cyclopropylacetamide (CAS 923191-46-2)
- (S)-(7-Chloro-2,3-dihydrobenzo[b][1,4]dioxin-2-yl)methanol (CAS 187543-36-8)
- 2-(2,5-Dimethyl-1h-indol-3-yl)-N-(pyridin-2-ylmethyl)ethan-1-amine dihydrochloride (CAS 1052411-59-2)
- 1-(3-Bromophenyl)-4-chloro-6-methyl-1H-pyrazolo[3,4-d]pyrimidine (CAS 1156999-13-1)
- Tri-(PEG1-C2-acid) (CAS 1381861-95-5)
- 5-(3,4-Dimethoxyphenyl)nicotinaldehyde (CAS 887973-85-5)
- Methyl 2-methyl-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)isonicotinate (CAS 1309982-35-1)
- Butanedioic acid, 2-hydroxy-, compd. with 2-aminoethanol (1:x) (CAS 29868-01-7)
- 3-Bromoquinoline-6-carboxamide (CAS 205114-18-7)
- (4-Hydroxypiperidin-1-yl)(tetrahydrofuran-2-yl)methanone (CAS 1156976-90-7)
- α Bag Cell Peptide (1-9) (CAS 87549-52-8)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com