123487-98-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 123487-98-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,3,4,8 and 7 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 123487-98:
(8*1)+(7*2)+(6*3)+(5*4)+(4*8)+(3*7)+(2*9)+(1*8)=139
139 % 10 = 9
So 123487-98-9 is a valid CAS Registry Number.
123487-98-9Relevant articles and documents
Regioselective replacement of nitro or sulfonyl group in cyclic α-(nitroalkyl)- or α-(phenylsulfonylalkyl)enones by nucleophiles
Tamura, Rui,Katayama, Hitoshi,Watabe, Ken-Ichiro,Suzuki, Hitomi
, p. 7557 - 7568 (2007/10/19)
Cyclic α-(nitroalkyl)enones and α-(phenylsulfonylalkyl)enones undergo regioselective substitution of the nitro group by relatively soft sulfur, nitrogen and carbon nucleophiles.
