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688809-73-6

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688809-73-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 688809-73-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,8,8,8,0 and 9 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 688809-73:
(8*6)+(7*8)+(6*8)+(5*8)+(4*0)+(3*9)+(2*7)+(1*3)=236
236 % 10 = 6
So 688809-73-6 is a valid CAS Registry Number.

688809-73-6Relevant articles and documents

Preparation method of beta-nicotinamide mononucleotide

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Paragraph 0136-0141, (2021/05/01)

The invention discloses a preparation method of beta-nicotinamide mononucleotide. According to the method disclosed by the invention, the beta-nicotinamide mononucleotide is prepared by taking a compound shown as a formula II as a raw material and sequentially carrying out glycosylation condensation, deprotection, phosphorylation and acylation protection group removal reaction. Compared with methods in the prior art, the method provided by the invention has the advantages of high yield, simple operation, easy purification of intermediates, good phosphorylation selectivity and the like.

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