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688339-20-0

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688339-20-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 688339-20-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,8,8,3,3 and 9 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 688339-20:
(8*6)+(7*8)+(6*8)+(5*3)+(4*3)+(3*9)+(2*2)+(1*0)=210
210 % 10 = 0
So 688339-20-0 is a valid CAS Registry Number.

688339-20-0Downstream Products

688339-20-0Relevant articles and documents

CHIRAL INDOLE INTERMEDIATES AND THEIR FLUORESCENT CYANINE DYES CONTAINING FUNCTIONAL GROUPS

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Page 37; 38, (2008/06/13)

This invention relates to the functionalized cyanine dyes and more particularly, to the synthesis of chiral 3-substituted 2,3'-dymethyl-3H-indole and its derivatives as intermediates for preparation of cyanine dyes, to methods of preparing these dyes and the dyes so prepared.

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