900871-12-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 900871-12-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,0,0,8,7 and 1 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 900871-12:
(8*9)+(7*0)+(6*0)+(5*8)+(4*7)+(3*1)+(2*1)+(1*2)=147
147 % 10 = 7
So 900871-12-7 is a valid CAS Registry Number.
900871-12-7Relevant articles and documents
Synthesis of fused 2′-amino-3′-R-spiro-[indole-3,4′- pyran]-2(1H)-ones
Shemchuk,Chernykh,Red'kin
, p. 1789 - 1794 (2008)
An efficient one-pot procedure has been proposed for the synthesis of fused 2′-amino-3′-R-spiro-[indole-3,4′-pyran]-2(1H)-ones via base-catalyzed three-component condensation of isatins with the corresponding nitriles and 1,3-diketones.
