4727-50-8 Kryptocyanine Cryptocyanin 1-Ethyl-4-(3-(1-ethyl-4(1H)-quinolylidene)prop-1-enyl)quinolinium iodide Quinolinium, 1-ethyl-4-(3-(1-ethyl-4(1H)-quinolinylidene)-1-propenyl)-, iodide Quinolinium, 1-ethyl-4-(3-(1-ethyl-4(1H)-quinolylidene)propenyl)-, iodide Quinolinium, 1-ethyl-4-(3-(1-ethyl-4(1H)-quinolinylidene)-1-propen-1-yl)-, iodide (1:1) Cryptocyanine Cryptocyanine O. A. 2 Cryptocyanine iodide 1,1'-Diethyl-4,4'-carbocyanine iodide 1,1'-Diethylquino-(4)-carbocyanine iodide 1,1'-Diethyl-4,4'-quinocarbocyanine iodide Eastman 1334 EINECS 225-224-8 Kryptocyanin Kryptocyanine iodide NK 5 NK 5 (Dye) NK 5 (dye) (VAN) NK 5 (VAN) NSC 34391 CAS 4727-50-8

Purity 97%+In StockPharmaceutical Standards
CAS No.4727-50-8
Molecular FormulaC25H40N2
Molecular WeightN/A
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4727-50-8 Kryptocyanine Cryptocyanin 1-Ethyl-4-(3-(1-ethyl-4(1H)-quinolylidene)prop-1-enyl)quinolinium iodide Quinolinium, 1-ethyl-4-(3-(1-ethyl-4(1H)-quinolinylidene)-1-propenyl)-, iodide Quinolinium, 1-ethyl-4-(3-(1-ethyl-4(1H)-quinolylidene)propenyl)-, iodide Quinolinium, 1-ethyl-4-(3-(1-ethyl-4(1H)-quinolinylidene)-1-propen-1-yl)-, iodide (1:1) Cryptocyanine Cryptocyanine O. A. 2 Cryptocyanine iodide 1,1'-Diethyl-4,4'-carbocyanine iodide 1,1'-Diethylquino-(4)-carbocyanine iodide 1,1'-Diethyl-4,4'-quinocarbocyanine iodide Eastman 1334 EINECS 225-224-8 Kryptocyanin Kryptocyanine iodide NK 5 NK 5 (Dye) NK 5 (dye) (VAN) NK 5 (VAN) NSC 34391 CAS 4727-50-8 chemical structure

Description

This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.

4727-50-8 Kryptocyanine Cryptocyanin 1-Ethyl-4-(3-(1-ethyl-4(1H)-quinolylidene)prop-1-enyl)quinolinium iodide Quinolinium, 1-ethyl-4-(3-(1-ethyl-4(1H)-quinolinylidene)-1-propenyl)-, iodide Quinolinium, 1-ethyl-4-(3-(1-ethyl-4(1H)-quinolylidene)propenyl)-, iodide Quinolinium, 1-ethyl-4-(3-(1-ethyl-4(1H)-quinolinylidene)-1-propen-1-yl)-, iodide (1:1) Cryptocyanine Cryptocyanine O. A. 2 Cryptocyanine iodide 1,1'-Diethyl-4,4'-carbocyanine iodide 1,1'-Diethylquino-(4)-carbocyanine iodide 1,1'-Diethyl-4,4'-quinocarbocyanine iodide Eastman 1334 EINECS 225-224-8 Kryptocyanin Kryptocyanine iodide NK 5 NK 5 (Dye) NK 5 (dye) (VAN) NK 5 (VAN) NSC 34391 (CAS 4727-50-8), molecular formula C25H40N2I and molecular weight 495.51 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C25H40N2I, 4727-50-8 Kryptocyanine Cryptocyanin 1-Ethyl-4-(3-(1-ethyl-4(1H)-quinolylidene)prop-1-enyl)quinolinium iodide Quinolinium, 1-ethyl-4-(3-(1-ethyl-4(1H)-quinolinylidene)-1-propenyl)-, iodide Quinolinium, 1-ethyl-4-(3-(1-ethyl-4(1H)-quinolylidene)propenyl)-, iodide Quinolinium, 1-ethyl-4-(3-(1-ethyl-4(1H)-quinolinylidene)-1-propen-1-yl)-, iodide (1:1) Cryptocyanine Cryptocyanine O. A. 2 Cryptocyanine iodide 1,1'-Diethyl-4,4'-carbocyanine iodide 1,1'-Diethylquino-(4)-carbocyanine iodide 1,1'-Diethyl-4,4'-quinocarbocyanine iodide Eastman 1334 EINECS 225-224-8 Kryptocyanin Kryptocyanine iodide NK 5 NK 5 (Dye) NK 5 (dye) (VAN) NK 5 (VAN) NSC 34391 contains a nitrogen-containing heterocyclic scaffold, a nitrile group, iodine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 495.51 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

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 FormulaC25H40N2 I
Molecular Weight495.51 g/mol
AppearanceOff-white to pale yellow crystalline powder. (slight halide-like odor)
Purity97%+
StorageStore at room temperature, protect from light
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)6.5
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1958
Halogen ContentI-containing
Nitrogen Atoms2

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