139225-84-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 139225-84-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,2,2 and 5 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 139225-84:
(8*1)+(7*3)+(6*9)+(5*2)+(4*2)+(3*5)+(2*8)+(1*4)=136
136 % 10 = 6
So 139225-84-6 is a valid CAS Registry Number.
139225-84-6Relevant articles and documents
(Benzotriazol-1-yl)methoxymethyl anion: A novel methylal anion equivalent
Katritzky,Yang,Cundy
, p. 3061 - 3071 (2007/10/02)
The title anion readily reacts with a variety of electrophiles to give adducts which, upon treatment with methanol in the presence of p-toluenesulfonic acid, afford the corresponding α-functionalized dimethyl acetals.