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688800-86-4

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688800-86-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 688800-86-4 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 0 respectively; the second part has 2 digits, 8 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 688800-86:
(8*6)+(7*8)+(6*8)+(5*8)+(4*0)+(3*0)+(2*8)+(1*6)=214
214 % 10 = 4
So 688800-86-4 is a valid CAS Registry Number.

688800-86-4Downstream Products

688800-86-4Relevant articles and documents

Highly enantio- and diastereoselective organocatalytic asymmetric domino Michael-Aldol reaction of β-ketoesters and α,β-unsaturated ketones

Halland, Nis,Aburel, Pompiliu S.,Jorgensen, Karl Anker

, p. 1272 - 1277 (2007/10/03)

Three to four contiguous stereogenic centers are formed in the title reaction (see scheme). The optically active cyclohexanones are formed as single diastereomers with excellent enantioselectivities (up to 99% ee) and can be transformed into synthetically

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