78239-91-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 78239-91-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,8,2,3 and 9 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 78239-91:
(7*7)+(6*8)+(5*2)+(4*3)+(3*9)+(2*9)+(1*1)=165
165 % 10 = 5
So 78239-91-5 is a valid CAS Registry Number.
78239-91-5Relevant articles and documents
Process for the preparation of certain diphenyl ethers
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, (2008/06/13)
The method of preparing a compound of the formula STR1 wherein R1 is hydrogen, halogen, alkyl of 1 to 8 carbon atoms, trifluoromethyl or acetyl; n is 1 when R1 has all the defined meanings, or 2 or 3 when R1 is halogen or
