133685-26-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 133685-26-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,3,6,8 and 5 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 133685-26:
(8*1)+(7*3)+(6*3)+(5*6)+(4*8)+(3*5)+(2*2)+(1*6)=134
134 % 10 = 4
So 133685-26-4 is a valid CAS Registry Number.
133685-26-4Relevant articles and documents
Process for the preparation of 5-chloro-2-hydroxy-4-alkyl-benzenesulfonic acids
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, (2008/06/13)
Process for the preparation of compounds of the formula (1) STR1 in which R is an alkyl (C1 -C6) group and X is a hydrogen or alkali metal atom, in which compounds of the formula (2) STR2 in which R and X have the abovementioned mean
