73188-30-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 73188-30-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,3,1,8 and 8 respectively; the second part has 2 digits, 3 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 73188-30:
(7*7)+(6*3)+(5*1)+(4*8)+(3*8)+(2*3)+(1*0)=134
134 % 10 = 4
So 73188-30-4 is a valid CAS Registry Number.
73188-30-4Relevant articles and documents
A FACILE, STEREOSELECTIVE PREPARATION OF (Z)-2,4-PENTADIENOATES BY FAVORSKII REARRANGEMENT
Engler, Thomas A.,Falter, Wolfgang
, p. 4115 - 4118 (2007/10/02)
Reaction of 1,3,4-tribromo-2-alkanones, efficiently prepared by direct bromination of the parent enone, with methanolic sodium methoxide gives methyl (Z)-2,4-pentadienoates with high (Z) selectivity about the α,β-double bond.
