1-(5-chloro-8-(pyridin-3-ylamino)isoquinolin-3-yl)-3-ethylurea CAS 1338254-55-9
| CAS No. | 1338254-55-9 |
| Molecular Formula | C17H16ClN5O |
| Molecular Weight | 341.79 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of 1-(5-chloro-8-(pyridin-3-ylamino)isoquinolin-3-yl)-3-ethylurea (C17H16ClN5O) is characterized by a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO supplies 1-(5-chloro-8-(pyridin-3-ylamino)isoquinolin-3-yl)-3-ethylurea (CAS 1338254-55-9), a certified reference material (molecular formula C17H16ClN5O, MW 341.79 g/mol) for analytical method development and quality control.
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 | C17H16ClN5O |
| Molecular Weight | 341.79 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 5 |
Related chloro Standards
- 3-Acetyl-6-chloro-4-(4-ethoxyphenyl)quinolin-2(1H)-one (CAS 1283109-71-6)
- Benzyl 3-chloro-4-cyano-5,6,7,9-tetrahydro-8H-pyrido[3,4-c]azepine-8-carboxylate (CAS 1341039-99-3)
- (5-Chloro-1-methyl-3-phenyl-1H-pyrazol-4-yl)methyl phenylcarbamate (CAS 318248-39-4)
- (E)-4-(((4-chloro-6-methylpyrimidin-2-yl)imino)methyl)-5-hydroxy-1,6-dihydro-[1,1'-biphenyl]-3(2H)-one (CAS 946387-26-4)
- 1-Boc-4-(2-chloro-6-nitrophenyl)piperazine (CAS 400803-05-6)
- 1-Chloro-1,1-Difluoro-Hexan-2-One (CAS 6302-00-7)
- 2-((4-Chloro-5-oxo-1,2,5,6-tetrahydro-[1,1'-biphenyl]-3-yl)amino)benzoic acid (CAS 937604-84-7)
- 3-Chloro-N-methyl-N-((3-(p-tolyl)-1,2,4-oxadiazol-5-yl)methyl)benzamide (CAS 896659-80-6)
Recommended Standards
- 1306753-59-2 1-{2-(4-Chlorophenyl)-7-[(E)-2-(dimethylamino)vinyl][1,2,4]triazolo[1,5-a]pyrimidin-6-yl}ethanone MFCD19103624 (CAS 1306753-59-2)
- 2-(4-Chlorophenyl)-N-(3-phenylpropyl)-2H-tetrazole-5-carboxamide (CAS 1396792-10-1)
- 6-tert-Butyl 4-ethyl 2-chloro-5H,6H,7H,8H-pyrido[4,3-d]pyrimidine-4,6-dicarboxylate (CAS 1279816-32-8)
- 7-tert-Butyl 4-ethyl 2-chloro-5H,6H,7H,8H-pyrido[3,4-d]pyrimidine-4,7-dicarboxylate (CAS 1419101-04-4)
- Methyl 6-chloro-2-cyanonicotinate (CAS 1804507-68-3)
- N-Nitroso Dalbavancin (CAS CATO-C4X-160225)
- 4-((1,3-Dimethyl-4-(trifluoromethyl)-1H-pyrazolo[3,4-b]pyridin-6-yl)oxy)benzaldehyde (CAS 1031928-98-9)
- 4-Chloro-2,5-dimethylpyridine hydrochloride (CAS 42045-92-1)
- Ethyl 2-Acetyl-4-oxopentanoate (CAS 41892-81-3)
- Potassium (3-bromopropyl)trifluoroborate (CAS 1262538-15-7)
- 3,4-Dibromo-5-methylbenzoic acid (CAS 1564638-18-1)
- (R)-2-Amino-2-(2,5-dichlorophenyl)ethanol hydrochloride (CAS 1391487-05-0)
- 2-[2-(butan-2-yl)-1h-imidazol-4-yl]ethan-1-amine (CAS 1269532-47-9)
- Des-[Gly]31-Semaglutide(x TFA Salt) (CAS 873874-39-6(free base))
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