130688-59-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 130688-59-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,0,6,8 and 8 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 130688-59:
(8*1)+(7*3)+(6*0)+(5*6)+(4*8)+(3*8)+(2*5)+(1*9)=134
134 % 10 = 4
So 130688-59-4 is a valid CAS Registry Number.
130688-59-4Relevant articles and documents
Synthesis of 4,4-Disubstituted 2,3-Dicyano-5-imino-2-pyrrolines. Reaction of Alkylidenemalononitriles with Trimethylsilyl Cyanide
Chatani, Naoto,Hanafusa, Terukiyo
, p. 2134 - 2135 (1990)
The reaction of alkylidenemalononitriles with trimethylsilyl cyanide in the presence of KCN/18-crown-6 gave 4,4-disubstituted 2,3-dicyano-5-imino-2-pyrrolines in high yields.
