4-Chloro-2-(3,4-dimethoxyphenyl)pyrazolo[1,5-a]pyrazine-3-carbaldehyde CAS 1544841-79-3
| CAS No. | 1544841-79-3 |
| Molecular Formula | C15H12ClN3O3 |
| Molecular Weight | 317.73 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 4-Chloro-2-(3,4-dimethoxyphenyl)pyrazolo[1,5-a]pyrazine-3-carbaldehyde.
4-Chloro-2-(3,4-dimethoxyphenyl)pyrazolo[1,5-a]pyrazine-3-carbaldehyde (CAS 1544841-79-3), molecular formula C15H12ClN3O3 and molecular weight 317.73 g/mol, is a CATO reference standard with documented purity and traceability.
4-Chloro-2-(3,4-dimethoxyphenyl)pyrazolo[1,5-a]pyrazine-3-carbaldehyde (C15H12ClN3O3) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 4-Chloro-2-(3,4-dimethoxyphenyl)pyrazolo[1,5-a]pyrazine-3-carbaldehyde under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C15H12ClN3O3 |
| Molecular Weight | 317.73 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1992 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Chloro Standards
- (4-Chloro-2-oxazol-2-yl-phenyl)-(1-ethyl-5-hydroxy-1H-pyrazol-4-yl)-methanone (CAS 1231551-28-2)
- 4-((4-Chloro-6-((furan-2-ylmethyl)amino)-1,3,5-triazin-2-yl)amino)phenol (CAS 311788-82-6)
- 4-Chloro-2-(4-methoxybenzyl)pyrido[3,2-c]pyridazine-3,6(2H,5H)-dione (CAS 2447686-94-2)
- Methyl 5-((6-chloro-4-oxoquinolin-1(4H)-yl)methyl)furan-2-carboxylate (CAS 1215388-37-6)
- 2-(3-Chloro-4-oxazol-2-yl-benzoyl)-3-hydroxy-cyclohex-2-enone (CAS 1231606-47-5)
- 2-(2-Chloro-4-oxazol-2-yl-benzoyl)-3-hydroxy-cyclohex-2-enone (CAS 1231655-65-4)
- (2-Chloro-5-nitrophenyl)methyl (2E)-3-phenylprop-2-enoate (CAS 328263-22-5)
- 1-(4-Chloro-2,5-difluorobenzoyl)piperidine-4-carbohydrazide (CAS 388094-06-2)
Recommended Standards
- Benzyl 2-(2-amino-6-chloro-9H-purin-9-yl)acetate (CAS 169287-67-6)
- ethyl 3-(4-chlorophenyl)-7-oxo-4,7-dihydropyrazolo[1,5-a]pyrimidine-6-carboxylate (CAS 1018143-84-4)
- tert-Butyl (4-chloro-3-ethoxy-5-nitropyridin-2-yl)carbamate (CAS 1956331-11-5)
- Zinc Pyrithione (CAS 13463-41-7)
- Methyl 3-amino-2-(naphthalen-1-ylmethyl)propanoate hydrochloride (CAS 1311317-20-0)
- Tert-butyl (S)-4-methoxy-3-oxopentanoate (CAS 1832579-72-2)
- 1-((4-Chlorophenyl)sulfonyl)-4-(2-hydroxyethyl)-5-methyl-2-phenyl-1,2-dihydro-3H-pyrazol-3-one (CAS 866040-21-3)
- 2-Methyl-N-(1H-pyrazolo[3,4-b]pyridin-4-yl)benzamide (CAS 370588-90-2)
- (1-(Cyclobutylmethyl)piperidin-4-yl)methanamine (CAS 1286320-32-8)
- 3-Bromo-4-((2-chloro-4-fluorobenzyl)oxy)-5-ethoxybenzaldehyde (CAS 1427021-98-4)
- (1r,2s)-Cyclohexane-1,2-diamine dihydrochloride (CAS 10027-80-2)
- Ethyl 5-tosyl-1,2,3-thiadiazole-4-carboxylate (CAS 306977-12-8)
- Dutasteride EP Impurity C (CAS 157307-36-3)
- Semaglutide impurity 198 (CAS CATO-C4X-2226198)
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