1443775-81-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1443775-81-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,4,3,7,7 and 5 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1443775-81:
(9*1)+(8*4)+(7*4)+(6*3)+(5*7)+(4*7)+(3*5)+(2*8)+(1*1)=182
182 % 10 = 2
So 1443775-81-2 is a valid CAS Registry Number.
1443775-81-2Relevant articles and documents
Modular preparation of diverse dipyrrolemethanes
Pham, Cindy C.,Park, Michelle H.,Pham, Jenny Y.,Martin, Sadie G.,Schramm, Michael P.
, p. 1165 - 1173 (2013/06/05)
A modular synthesis of polyfunctional dipyrrolemethanes is presented. Diverse side chains are introduced to 2-carboxypyrrole building blocks in two to four steps, resulting in a collection of substituted pyrroles that, when condensed in one step, give ris
