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855781-83-8

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855781-83-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 855781-83-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,5,7,8 and 1 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 855781-83:
(8*8)+(7*5)+(6*5)+(5*7)+(4*8)+(3*1)+(2*8)+(1*3)=218
218 % 10 = 8
So 855781-83-8 is a valid CAS Registry Number.

855781-83-8Relevant articles and documents

Fluorescent dye

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Paragraph 0075; 0076; 0086; 0087; 0088, (2019/03/26)

PROBLEM TO BE SOLVED: To provide a fluorescent dye that can be produced at reduced cost, and has higher fluorescence intensity even in a solid state. SOLUTION: A fluorescent dye contains an azole derivative such as 4,7-bis(4-methoxyphenyl)-6-(N-methyl-N-s

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