104960-40-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 104960-40-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,4,9,6 and 0 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 104960-40:
(8*1)+(7*0)+(6*4)+(5*9)+(4*6)+(3*0)+(2*4)+(1*0)=109
109 % 10 = 9
So 104960-40-9 is a valid CAS Registry Number.
104960-40-9Relevant articles and documents
SYNTHESIS AND PROPERTIES OF 3--4-HYDROXYCOUMARINS AND THEIR THIO ANALOGS
Marshalkin, V. N.,Smirnova, T. V.,Yushcenko, K. V.
, p. 2220 - 2225 (2007/10/02)
The Michael condensation of 4-hydroxycoumarin and 1-thio-4-hydroxycoumarin with 2-arylidene-1,3-indanediones was realized. 3--4-hydroxycoumarins and their thio analogs (new synthetic blood anticoagulants) were obtained.
