70371-54-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 70371-54-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,0,3,7 and 1 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 70371-54:
(7*7)+(6*0)+(5*3)+(4*7)+(3*1)+(2*5)+(1*4)=109
109 % 10 = 9
So 70371-54-9 is a valid CAS Registry Number.
70371-54-9Relevant articles and documents
Reaction of 6-Aminouracils with Ketenethioacetals
Tominaga, Yoshinori,Kohra, Shinya,Okuda, Hiroto,Ushirogochi, Atsuyuki,Matsuda, Yoshiro,et al.
, p. 122 - 129 (2007/10/02)
Reaction of ketenethioacetals with 6-aminouracils (1a: R1=R2=Me, 1b: R1=Ph, R2=H) in the presence of potassium carbonate followed by cyclization unde