3-Chloro-1,2-dihydroquinoxalin-2-one CAS 35676-70-1
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 35676-70-1 |
| Molecular Formula | C8H5ClN2O |
| Molecular Weight | 180.59 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-Chloro-1,2-dihydroquinoxalin-2-one (CAS 35676-70-1) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C8H5ClN2O. Molecular weight: 180.59 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C8H5ClN2O |
| Molecular Weight | 180.59 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, 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 |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1967 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Chloro Standards
- 6-Chloro-1H-pyrrolo[3,2-c]pyridine-3-carbaldehyde (CAS 1000341-64-9)
- 8-Chloro-3,4-dihydroquinazolin-4-one (CAS 101494-95-5)
- 7-Chloro-4H-1-benzopyran-4-one (CAS 101860-74-6)
- 8-Chloro-1,7-naphthyridin-4(1H)-one (CAS 1018812-91-3)
- 4-Chloro-1h-indazole-3-carbaldehyde (CAS 102735-85-3)
- 3-Chloro-1H-indazole-6-carbaldehyde (CAS 1086391-23-2)
- 8-Chloro-1,5-naphthyridin-2(1H)-one (CAS 1092650-94-6)
- 5-Chloro-1H-indazole-7-carbaldehyde (CAS 1100213-27-1)
Recommended Standards
- 3-Amino-7-chloro-1,2,4-benzotriazine (CAS 5423-53-0)
- 3-chloro-1-benzofuran-2-carbaldehyde (CAS 40620-00-6)
- 3-amino-6-chloro-1H-isoindol-1-one (CAS 65122-09-0)
- 5J18BP595G 7789-09-5 Ammonium bichromate Ammonium dichromate Ammonium dichromate(VI) Dichromic acid, diammonium salt Chromic acid (H2Cr2O7), ammonium salt (1:2) Chromic acid (H2Cr2O7), diammonium salt Ammonio (bicromato di) [Italian] Ammonio (dicromato di) [Italian] Ammonium chromate ((NH4)2Cr2O7) Ammonium (dichromate d') [French] Ammonium dichromate (VI) Ammoniumbichromaat [Dutch] Ammoniumdichromaat [Dutch] Ammoniumdichromat [German] Bichromate d'ammonium [French] Diammonium dichromate Dichromic acid (H2Cr2O7), diammonium salt EINECS 232-143-1 HSDB 481 Ammonio (bicromato di) Ammonio (dicromato di) Ammonium (dichromate d') Ammoniumbichromaat Ammoniumdichromaat Ammoniumdichromat Bichromate d'ammonium UNII-5J18BP595G EC 232-143-1 Ammonium dichromate [Chromium and chromium compounds] Ammonium dichromate [UN1439] [Oxidizer] Chromic acid, diammonium salt UN1439 (CAS 7789-09-5)
- 2,3-Bis(4-methoxyphenyl)cycloprop-2-enone (CAS 25361-94-8)
- Acid Blue 113 (CAS 3351-05-1)
- 4-(4-cyclopropyl-4H-1,2,4-triazol-3-yl)piperidine dihydrochloride (CAS 1269151-60-1)
- (E)-N-[(3-fluorophenyl)methylidene]hydroxylamine (CAS 154238-36-5)
- 3-(2,5-Dichlorophenyl)-4-methyl-1h-pyrazol-5-amine (CAS 1146218-14-5)
- Des-Gly29,30-Tirzepatide (CAS CATO-CPTD788944)
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 13829788188 / jacky.chen@cato-chem.com