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5987-55-3

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5987-55-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 5987-55-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,9,8 and 7 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 5987-55:
(6*5)+(5*9)+(4*8)+(3*7)+(2*5)+(1*5)=143
143 % 10 = 3
So 5987-55-3 is a valid CAS Registry Number.

5987-55-3Downstream Products

5987-55-3Relevant articles and documents

Complexation-induced activation of sugar OH groups. Regioselective alkylation of methyl fucopyranoside via cyclic phenylboronate in the presence of amine

Oshima, Kenji,Kitazono, Ei-Ichi,Aoyama, Yasuhiro

, p. 5001 - 5004 (1997)

Methyl fucopyranoside undergoes highly regioselective 3-O-alkylation via complexation with phenylboronic acid, followed by treatment of the resulting 3,4-boronate with iodobutane in the presence of a tertiary amine and Ag2O. The essential step is suggested to be regioselective activation of the 3-O nucleophilic center upon amine coordination with the O-bonded boron atom.

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