Butyl 9-(dicyanomethylene)-9H-fluorene-4-carboxylate CAS 93376-18-2
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 93376-18-2 |
| Molecular Formula | C21H16N2O2 |
| Molecular Weight | 328.36 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Butyl 9-(dicyanomethylene)-9H-fluorene-4-carboxylate (CAS 93376-18-2), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C21H16N2O2. Molecular weight: 328.36 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C21H16N2O2 |
| Molecular Weight | 328.36 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) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1983 |
| Nitrogen Atoms | 2 |
Related Butyl Standards
- 51325-91-8 4-(Dicyanomethylene)-2-methyl-6-(4-(dimethylamino)styryl)-4H-pyran (2-(2-(4-(Dimethylamino)phenyl)ethenyl)-6-methyl-4H-pyran-4-ylidene)propanedinit rile (2-(2-(4-(Dimethylamino)phenyl)vinyl)-6-methyl-4H-pyran-4-ylidene)malononitrile Malononitrile, (2-(p-(dimethylamino)styryl)-6-methyl-4H-pyran-4-ylidene)- Propanedinitrile, 2-(2-(2-(4-(dimethylamino)phenyl)ethenyl)-6-methyl-4H-pyran-4-ylidene)- Propanedinitrile, (2-(2-(4-(dimethylamino)phenyl)ethenyl)-6-methyl-4H-pyran-4-ylidene)- CCRIS 4973 (2-(2-(4-(Dimethylamino)phenyl)ethenyl)-6-methyl-4H-pyran-4-ylidene)propanedinitrile (2-(p-(Dimethylamino)styryl)-6-methyl-4H-pyran-4-ylidene)malononitrile EINECS 257-137-6 (CAS 51325-91-8)
- 4-(Dicyanomethylene)-2-methyl-6-[2-(2,3,6,7-tetrahydro-1H,5H-benzo[ij]quinolizin-9-yl)vinyl]-4H-pyran (CAS 51325-95-2)
- 9-(Dicyanomethylene)-2.4.7-trinitrofluorene (CAS 1172-02-7)
- N-(1-(Dicyanomethylene)-1H-isoindol-3-yl)acetamide (CAS 76751-00-3)
- 9-(Dicyanomethylene)fluorene (CAS 1989-32-8)
- Ethyl4-(dicyanomethylene)-piperidine-1-carboxylate (CAS 930112-89-3)
- 4-(Dicyanomethylene)-2,6-dimethyl-4H-pyran (CAS 28286-88-6)
- 1-(Dicyanomethylene)-4,4,6-trimethyl-2-oxo-1,2-dihydro-4H-pyrrolo[3,2,1-ij]quinolin-8-yl 3,4,5-trimethoxybenzoate (CAS 689754-64-1)
Recommended Standards
- Boc-L-leucine N-Hydroxysuccinimide Ester (CAS 3392-09-4)
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- Boc-D-Leu-OSu, 99% (CAS 60111-76-4)
- Ethyl 5-methyl-4-oxo-5,6,7,8-tetrahydro-4H-pyrazolo[1,5-a][1,4]diazepine-2-carboxylate (CAS 1955523-21-3)
- (3S)-oxolane-3-carbonitrile (CAS 1363378-18-0)
- 3-(2-Methylphenyl)-2-sulfanylidene-1H,2H,3H,4H-thieno[3,2-d]pyrimidin-4-one (CAS 688354-32-7)
- 2-Ethyl-N,N-dimethyl-5-nitrobenzene-1-sulfonamide (CAS 90874-19-4)
- 2-(2-Cyclobutyl-1H-benzo[d]imidazol-1-yl)acetic acid (CAS 97968-86-0)
- 3-(4-Chlorophenyl)pyrrolidine-2,5-dione (CAS 1628-19-9)
- Tirzepatide Impurity 18 (CAS CATO-C4X-324018)
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