131818-28-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 131818-28-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,1,8,1 and 8 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 131818-28:
(8*1)+(7*3)+(6*1)+(5*8)+(4*1)+(3*8)+(2*2)+(1*8)=115
115 % 10 = 5
So 131818-28-5 is a valid CAS Registry Number.
131818-28-5Relevant articles and documents
Thiophene-2-carboxylic acid derivatives, their preparation and their use for controlling undesirable plant growth
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, (2008/06/13)
Thiophene-2-carboxylic acid derivatives of the general formula I STR1 where R1 to R3 are each hydrogen, halogen, branched or straight-chain C1 -C6 -alkyl, C1 -C8 -alkoxy, C1 -Cs