2-Amino-1'-methyl-2',5-dioxo-5,6,7,8-tetrahydrospiro[chromene-4,3'-indoline]-3-carbonitrile CAS 445222-91-3
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 445222-91-3 |
| Molecular Formula | C18H15N3O3 |
| Molecular Weight | 321.33 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-Amino-1'-methyl-2',5-dioxo-5,6,7,8-tetrahydrospiro[chromene-4,3'-indoline]-3-carbonitrile (CAS 445222-91-3) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C18H15N3O3. Molecular weight: 321.33 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C18H15N3O3 |
| Molecular Weight | 321.33 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 DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 3 |
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Recommended Standards
- 2,6-Dimethyl-4-(naphthalen-1-yl)pyridine-3,5-dicarboxylic acid (CAS 94301-28-7)
- 2-Benzamido-N-(3-methylisoxazol-5-yl)benzamide (CAS 90059-31-7)
- 2,4-Dimorpholino-5-nitrobenzaldehyde (CAS 499975-25-6)
- 2-Fluoro-4-methyl-5-nitrophenyl trifluoromethanesulfonate (CAS 1980076-30-9)
- (2Z)-2-Amino-3-[(E)-[(pyridin-2-yl)methylidene]amino]but-2-enedinitrile (CAS 58259-75-9)
- 4,4'-Methylenebis(2-ethylaniline) (CAS 19900-65-3)
- Ethyl 2-(aminomethyl)thiazole-4-carboxylate (CAS 91711-96-5)
- Tert-butyl (aminomethyl)carbamate (CAS 73017-97-7)
- Cyclophosphamide EP Impurity C HCl (CAS 821-48-7)
- Tirzepatide Impurity 24 X TFA Salt (CAS CATO-C4X-324024)
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