139061-55-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 139061-55-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,0,6 and 1 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 139061-55:
(8*1)+(7*3)+(6*9)+(5*0)+(4*6)+(3*1)+(2*5)+(1*5)=125
125 % 10 = 5
So 139061-55-5 is a valid CAS Registry Number.
139061-55-5Relevant articles and documents
Reactions of flavonoid thiosemicarbazones under acetylating conditions
Somogyi, Laszlo
, p. 9305 - 9316 (2007/10/02)
Upon acetylation, (2-phenyl)dihydrobenzopyrone- and 2′-hydroxychalcone thiosemicarbazones (1c, 2c, 3c, and 7c) form 2,2-disubstituted 5-acetamido-3-acetyl-2,3-dihydro-1,3,4-thiadiazoles (1i, 2i, 4i, and 8i) instead of the diacetylthiosemicarbazones (2e, 8
