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7,12a-Bis<2-hydroxyphenylmethylenamino>-6a,12a-dihydro-6H,7H-<1>benzothiopyrano<4,3-b><1>benzopyran is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

99875-23-7

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99875-23-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 99875-23-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,9,8,7 and 5 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 99875-23:
(7*9)+(6*9)+(5*8)+(4*7)+(3*5)+(2*2)+(1*3)=207
207 % 10 = 7
So 99875-23-7 is a valid CAS Registry Number.

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