120281-99-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 120281-99-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,0,2,8 and 1 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 120281-99:
(8*1)+(7*2)+(6*0)+(5*2)+(4*8)+(3*1)+(2*9)+(1*9)=94
94 % 10 = 4
So 120281-99-4 is a valid CAS Registry Number.
120281-99-4Relevant articles and documents
SYNTHESIS OF THE POTENT POTASSIUM CHANNEL OPENER Ro 31-6930 VIA CLAISEN REARRANGEMENT AND TANDEM REGIOCONTROLLED CYCLISATION.
Attwood, Michael R.,Churcher, Ian,Dunsdon, Rachel M.,Hurst, David N.,Jones, Philip S.
, p. 811 - 814 (1991)
The synthesis of the potent potassium channel opener Ro 31-6930 is reported.Methods of controlling the regiochemistry of the crucial cyclisation are described.