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69888-51-3

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69888-51-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 69888-51-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,9,8,8 and 8 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 69888-51:
(7*6)+(6*9)+(5*8)+(4*8)+(3*8)+(2*5)+(1*1)=203
203 % 10 = 3
So 69888-51-3 is a valid CAS Registry Number.

69888-51-3Relevant articles and documents

STEREOSELECTIVE SYNTHESIS OF ERYTHRO- AND THREO-1,2-DIOLS FROM DIKETO SULFIDES VIA CIS-3,4-DIHYDROXYTHIOLANES

Nakayama, Juzo,Yamaoka, Shoji,Hoshino, Masamatsu

, p. 1799 - 1802 (2007/10/02)

Intramolecular reductive coupling reaction of a series of diketo sulfides (1) by a low-valent titanium reagent at 0 deg C in tetrahydrofuran leads to cis-3,4-dihydroxythiolanes (2) exclusively in 67-89percent yields.Desulfurization of 2 by Raney nickel in

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