421567-93-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 421567-93-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,2,1,5,6 and 7 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 421567-93:
(8*4)+(7*2)+(6*1)+(5*5)+(4*6)+(3*7)+(2*9)+(1*3)=143
143 % 10 = 3
So 421567-93-3 is a valid CAS Registry Number.
421567-93-3Relevant articles and documents
Asymmetric synthesis of pseudo C2-symmetric 2-methyl substituted 1,3-diols
Enders,Voith
, p. 29 - 32 (2007/10/03)
The diastereo- and enantioselective synthesis of pseudo C2-symmetric, 2-methyl substituted, acetonide protected (4) and free 1,3-diols 5 employing the SAMP-hydrazone mothodology with virtually complete asymmetric induction (de ≥ 96%, ee ≥ 98-99
