305861-94-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 305861-94-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,0,5,8,6 and 1 respectively; the second part has 2 digits, 9 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 305861-94:
(8*3)+(7*0)+(6*5)+(5*8)+(4*6)+(3*1)+(2*9)+(1*4)=143
143 % 10 = 3
So 305861-94-3 is a valid CAS Registry Number.
305861-94-3Relevant articles and documents
A facile synthesis of 3-substituted-2-aminothiophenes and 1,3-disubstituted-2-methylthiopyrroles
Katritzky,Wang,Denisenko
, p. 2850 - 2853 (2001)
Electron-rich 3-functionalized-2-aminothiophenes 6 and 1,3-disubstituted-2-methylthiopyrroles 10 were synthesized from substituted allyl benzotriazoles 2 and isothiocyanates 3 via condensation and subsequent heterocyclization.
