138883-72-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 138883-72-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,8,8 and 3 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 138883-72:
(8*1)+(7*3)+(6*8)+(5*8)+(4*8)+(3*3)+(2*7)+(1*2)=174
174 % 10 = 4
So 138883-72-4 is a valid CAS Registry Number.
138883-72-4Relevant articles and documents
181. A Novel Synthesis of tert-Alkyl Sulfides
Katritzky, Alan R.,Perumal, Subbu,Kuzmierkiewicz, Wojciech,Lue, Ping,Greenhill, John V.
, p. 1924 - 1930 (2007/10/02)
tert-Alkyl sulfides are conveniently prepared from α-(1H-benzotriazol-1-yl)alkyl sulfides by displacement of the 1H-benzotriazol-1-yl group with Grignard reagents.The 1-- and 1--1H-benzotriazole intermediates are eas
