1687754-74-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1687754-74-0 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,8,7,7,5 and 4 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1687754-74:
(9*1)+(8*6)+(7*8)+(6*7)+(5*7)+(4*5)+(3*4)+(2*7)+(1*4)=240
240 % 10 = 0
So 1687754-74-0 is a valid CAS Registry Number.
1687754-74-0Relevant articles and documents
Synthesis of 3-Benzyl-4-chromones and 3-Benzyl-1-thio-4-chromones
Levai, A.,Dinya, Z.,Schag, J. B.,Toth, G.,Szoelloesy, A.
, p. 465 - 466 (2007/10/02)
3-Benzyl-4-chromones 6 and 7 and 3-benzyl-1-thio-4-chromones 8-10 have been synthesized by the piperidine-catalyzed reaction of chroman-4-one or 1-thio-chroman-4-one with benzaldehydes or by the double bond isomerization of the corresponding 3-benzylidene
