13554-71-7 Usage
Appearance
White solid
Solubility
Insoluble in water
Usage
Building block in various chemical reactions
Pharmaceutical industry
Synthesis of various drugs
Dye and pigment industry
Production of dyes, pigments, and fluorescent compounds
Electronic materials
Development of electronic materials
High-performance materials
Precursor in the production of high-performance materials
Importance
Diverse applications in different industries
Check Digit Verification of cas no
The CAS Registry Mumber 13554-71-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,3,5,5 and 4 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 13554-71:
(7*1)+(6*3)+(5*5)+(4*5)+(3*4)+(2*7)+(1*1)=97
97 % 10 = 7
So 13554-71-7 is a valid CAS Registry Number.
13554-71-7Relevant academic research and scientific papers
SRN1 SYNTHESES OF BIS(PHENYLTHIO)- AND DICYANO-NAPHTHALENES VIA DIAZOSULFIDES
Novi, M.,Garbarino, G.,Petrillo, G.,Dell'Erba, C.
, p. 2205 - 2212 (2007/10/02)
The reactions of bromonaphthalenediazonium tetrafluoroborates (6a,b and 11a,b) with sodium benzenethiolate in DMSO give, through the preliminary formation of the corresponding diazosulfides (7a,b and 12a,b) bis(phenylthio)naphthalenes (8a,b and 13a,b) deriving from substitution of both the diazo group and the bromine.Isolated diazosulfides (7a,b and 12a,b) likewise furnish satisfactory yields of dinitriles (9a,b and 14a,b) by reaction with excess tetrabutylammonium cyanide in DMSO under photostimulation by a sunlamp.The intervention of an SRN1 process accounting for the formation of the disubstitution products is postulated.
