49759-20-8 Usage
Chemical Properties
Yellow Solid
Uses
Different sources of media describe the Uses of 49759-20-8 differently. You can refer to the following data:
1. Reagent used for the fluorescent labeling of thiols, sulfides and sulfites for determination by HPLC
2. Used for fluorometric determination of sulfites in foods and fermentation products
3. Used for fluorometric determination of sulfites in foods and fermentation products.
Purification Methods
Purify NAM by chromatography on silica gel using CH2Cl2 as eluant. Evaporation of pooled fractions that gave the correct NMR spectra gave a solid which was crystallised from Me2CO as pale yellow prisms. IR max (nujol): 1710 (imide); UV (MeOH): max (nm), ( 1cm-1): 251 (159 500), 343 shoulder (7 700), 360 (12 400) and 382shoulder (47 000). [Mashida et al. Chem Pharm Bull Jpn 26 596 1978, Schuldiner et al. Eur J Biochem 25 64 1972,]
Check Digit Verification of cas no
The CAS Registry Mumber 49759-20-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,9,7,5 and 9 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 49759-20:
(7*4)+(6*9)+(5*7)+(4*5)+(3*9)+(2*2)+(1*0)=168
168 % 10 = 8
So 49759-20-8 is a valid CAS Registry Number.
InChI:InChI=1/C17H10N2O2/c20-15-9-10-16(21)19(15)17-11-5-1-3-7-13(11)18-14-8-4-2-6-12(14)17/h1-10H
