87991-84-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 87991-84-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,7,9,9 and 1 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 87991-84:
(7*8)+(6*7)+(5*9)+(4*9)+(3*1)+(2*8)+(1*4)=202
202 % 10 = 2
So 87991-84-2 is a valid CAS Registry Number.
87991-84-2Relevant academic research and scientific papers
Engler,Letavic,Takusagawa
, p. 6731 - 6734 (1992)
Asymmetric Diels-Alder reactions of 2-methoxy-1,4-benzoquinones utilizing a chiral Ti(IV) complex as a Lewis acid promoter are reported.
