175599-83-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 175599-83-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,5,5,9 and 9 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 175599-83:
(8*1)+(7*7)+(6*5)+(5*5)+(4*9)+(3*9)+(2*8)+(1*3)=194
194 % 10 = 4
So 175599-83-4 is a valid CAS Registry Number.
175599-83-4Relevant articles and documents
Preparation of new trifunctional thiophene derivatives
Naumann,Bohm,Fuloep,Bernath
, p. 4 - 6 (2007/10/02)
From the reactions of ethyl 2-oxo-1-cyclopentane-, cyclohexane- and cycloheptanecarboxylate and their 1-methyl and 1-ethyl derivatives 1a-g with malononitrile or ethyl cyanoacetate, the corresponding alkylidene nitriles 2a-g and esters 3a-g were obtained.