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216451-99-9

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216451-99-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 216451-99-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,6,4,5 and 1 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 216451-99:
(8*2)+(7*1)+(6*6)+(5*4)+(4*5)+(3*1)+(2*9)+(1*9)=129
129 % 10 = 9
So 216451-99-9 is a valid CAS Registry Number.

216451-99-9Upstream product

216451-99-9Downstream Products

216451-99-9Relevant articles and documents

Rhodium(II)- and copper(I)-catalyzed intramolecular carbon-hydrogen bond insertions with metal carbenoids derived from diazo ketones

Mueller, Paul,Maitrejean, Esther

, p. 1807 - 1826 (2007/10/03)

The decomposition of diazo ketones in the presence of Rh(II) and Cu(I) catalysts affords products of C-H bond insertion in high yields. The effect of structural variation on intramolecular and transannular C-H insertions of diazo ketones has been investig

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