306990-43-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 306990-43-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,0,6,9,9 and 0 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 306990-43:
(8*3)+(7*0)+(6*6)+(5*9)+(4*9)+(3*0)+(2*4)+(1*3)=152
152 % 10 = 2
So 306990-43-2 is a valid CAS Registry Number.
306990-43-2Relevant articles and documents
A facile synthesis of 3-substituted-2-aminothiophenes and 1,3-disubstituted-2-methylthiopyrroles
Katritzky,Wang,Denisenko
, p. 2850 - 2853 (2007/10/03)
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.
