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99773-42-9

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99773-42-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 99773-42-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,9,7,7 and 3 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 99773-42:
(7*9)+(6*9)+(5*7)+(4*7)+(3*3)+(2*4)+(1*2)=199
199 % 10 = 9
So 99773-42-9 is a valid CAS Registry Number.

99773-42-9Relevant articles and documents

STEREOSELECTIVE SYNTHESIS OF CIS-α,β-EPOXYESTERS AND ALDEHYDES VIA DIVALENT TIN ENOLATE. A SYNTHESIS OF 2-AMINO-2-DEOXY-D-ARABINITOL

Mukaiyama, Teruaki,Yura, Takeshi,Iwasawa, Nobuharu

, p. 809 - 812 (2007/10/02)

A convenient method for the stereoselective synthesis of cis-α,β-epoxyesters and aldehydes is established according to the Sn(OTf)2 mediated cross aldol reaction between α-bromo-α'-silyloxyketone and aldehyde.The reaction is applied to the stereoselective synthesis of 2-amino-2-deoxy-D-arabinitol.

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