Methyl 4-(4-oxospiro[chromane-2,3'-pyrrolidine]-1'-carbonyl)benzoate CAS 1787917-30-9
| CAS No. | 1787917-30-9 |
| Molecular Formula | C21H19NO5 |
| Molecular Weight | 365.38 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO supplies Methyl 4-(4-oxospiro[chromane-2,3'-pyrrolidine]-1'-carbonyl)benzoate (CAS 1787917-30-9), a certified reference material (molecular formula C21H19NO5, MW 365.38 g/mol) for analytical method development and quality control.
Structurally, Methyl 4-(4-oxospiro[chromane-2,3'-pyrrolidine]-1'-carbonyl)benzoate (C21H19NO5) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 13.0, corresponding to approximately 13 ring(s) or double-bond equivalent(s). With a molecular weight of 365.38 g/mol, it falls into the moderately-high-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C21H19NO5 |
| Molecular Weight | 365.38 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1994 |
| Nitrogen Atoms | 1 |
Related Methyl Standards
- Benzyl 4-oxospiro[chroman-2,4'-piperidine]-1'-carboxylate (CAS 873779-32-9)
- Benzyl 2-oxospiro[indoline-3,3'-pyrrolidine]-1'-carboxylate (CAS 908287-35-4)
- 2-((4'-Methyl-4-oxospiro[chroman-2,1'-cyclohexan]-7-yl)oxy)acetic acid (CAS 1217670-03-5)
- 2-((4-Oxospiro[chromane-2,1'-cyclohexan]-6-yl)oxy)acetic acid (CAS 135111-35-2)
- 2-((4-Oxospiro[chromane-2,1'-cyclohexan]-7-yl)oxy)acetic acid (CAS 135111-36-3)
- Ethyl 4-Oxospiro[1,2,3,4-tetrahydroquinazoline-2,1’-cyclopentane]-5-carboxylate (CAS 1272756-22-5)
- Ethyl 4-Oxospiro[1,2,3,4-tetrahydroquinazoline-2,1’-cyclobutane]-5-carboxylate (CAS 1272756-15-6)
- Benzyl (6-oxospiro[3.3]heptan-2-yl)carbamate (CAS 2111106-56-8)
Recommended Standards
- NIK SMI1, >98% (HPLC) (CAS 1660114-31-7)
- ((Benzyloxy)carbonyl)glycylglycyl-L-valine (CAS 34152-86-8)
- Butyl 4-(2-oxo-2H-chromene-3-carboxamido)benzoate (CAS 161559-21-3)
- (2R,3S,4S,5R,6R)-2-(Hydroxymethyl)-6-(6-((3-methylbut-2-en-1-yl)amino)-7H-purin-7-yl)tetrahydro-2H-pyran-3,4,5-triol (CAS 59384-58-6)
- Diethyl 2-(2,4-dichloro-5-fluorobenzoyl)malonate (CAS 86483-50-3)
- 11-Oxo Androsterone (CAS 1231-82-9)
- Ethyl 5-methoxy-1,2-dimethyl-1h-indole-3-carboxylate (CAS 40963-98-2)
- 2-(methylamino)-2-(3,4,5-trifluorophenyl)acetic acid (CAS 1344310-34-4)
- 6-Hydroxybenzofuran-2-carboxylic Acid (CAS 334022-87-6)
- 3-Chloro-1-propyl-6,7-dihydro-5H-cyclopenta[c]pyridine-4-carbonitrile (CAS 2512765-32-9)
- 1-(Bicyclo[3.1.0]hexan-3-yl)-6-(methylthio)-1H-pyrazolo[3,4-d]pyrimidine (CAS 1365170-02-0)
- 4-Oxo-1,2-dihydro-4H-pyrrolo[3,2,1-ij]quinoline-5-carbonitrile (CAS 400631-25-6)
- Ethyl 2-(5-cyano-1H-indol-1-yl)acetate (CAS 1233500-99-6)
- Semaglutide impurity 272 (CAS CATO-C4X-2226272)
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