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859742-90-8

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859742-90-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 859742-90-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,9,7,4 and 2 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 859742-90:
(8*8)+(7*5)+(6*9)+(5*7)+(4*4)+(3*2)+(2*9)+(1*0)=228
228 % 10 = 8
So 859742-90-8 is a valid CAS Registry Number.

859742-90-8Downstream Products

859742-90-8Relevant articles and documents

Methyl Group Migration in the Reactions of Alkynyltrialkylborates

Pelter, Andrew,Drake, Robert A.

, p. 4181 - 4184 (1988)

It is shown that the methyl group cannot be used as a cheap, non-migrating group in the reactions of alkynyltrialkylborates with electrophiles.However, trimethylborane can be used as a methylboronating agent for alkynes, given the right choice of solvent, and this may be of use in terpene synthesis.

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