1215877-20-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1215877-20-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,1,5,8,7 and 7 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1215877-20:
(9*1)+(8*2)+(7*1)+(6*5)+(5*8)+(4*7)+(3*7)+(2*2)+(1*0)=155
155 % 10 = 5
So 1215877-20-5 is a valid CAS Registry Number.
1215877-20-5Relevant articles and documents
Synthesis of γ, δ-unsaturated glycolic acids via sequenced brook and Ireland - Claisen rearrangements
Schmitt, Daniel C.,Johnson, Jeffrey S.
, p. 944 - 947 (2010)
(Figure Presented) Organozinc, -magnesium, and -lithium nucleophiles Initiate a Brook/lreland-Clalsen rearrangement sequence of allylic silyl glyoxylates resulting in the formation of γ, δ-unsaturated a-silyloxy acids.