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1-O-<(3β,20β)-20-oxo-20-deoxy-20-tosylthiosemicarbazido-11-oxo-30-norolean-12-en-3-yl>-2-O-(β-D-2,3,4-tri-O-acetyl-6-oxo-6-deoxy-6-tosylthiosemicarbazidoglucopyranosyl)-α-D-3,4-di-O-acetyl-6-oxo-6-deoxy-6-tosylthiosemicarbazidoglucopyranozide is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

137957-55-2

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137957-55-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 137957-55-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,9,5 and 7 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 137957-55:
(8*1)+(7*3)+(6*7)+(5*9)+(4*5)+(3*7)+(2*5)+(1*5)=172
172 % 10 = 2
So 137957-55-2 is a valid CAS Registry Number.

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