109969-10-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 109969-10-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,9,6 and 9 respectively; the second part has 2 digits, 1 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 109969-10:
(8*1)+(7*0)+(6*9)+(5*9)+(4*6)+(3*9)+(2*1)+(1*0)=160
160 % 10 = 0
So 109969-10-0 is a valid CAS Registry Number.
109969-10-0Relevant articles and documents
Preparation of 2-(2H-Benzotriazol-2-yl)phenols by the Reduction of 2-phenols with Thiourea S,S-Dioxide
Tanimoto, Shigeo,Kamano, Takayoshi
, p. 647 - 649 (1986)
The reduction of 2-phenols 1 with thiourea S,S-dioxide and sodium hydroxide in a mixture of isopropyl alcohol and water at reflux provides 2-(2H-benzotriazol-2-yl)phenols 3 in excellent yields.