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40010-55-7

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40010-55-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 40010-55-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,0,0,1 and 0 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 40010-55:
(7*4)+(6*0)+(5*0)+(4*1)+(3*0)+(2*5)+(1*5)=47
47 % 10 = 7
So 40010-55-7 is a valid CAS Registry Number.

40010-55-7Relevant articles and documents

C-1,C-2 Stereospecific Rearrangements of Aldohexoses by Calcium Ion in Basic Solution

Yanagihara, Ryoji,Osanai, Shuichi,Yoshikawa, Sadao

, p. 2273 - 2276 (2007/10/02)

In aqueous or methanolic solution containing Ca(2+) and hydroxide ion, aldoses are rapidly epimerized at C-2.This reaction involves C-1,C-2 stereospecific rearrangement. -D-Mannose is formed from -D-glucose by this reaction.

HYDROXIDE-CATALYZED ISOMERIZATION OF D-(1-13C)MANNOSE: EVIDENCE FOR THE INVOLVEMENT OF 3,4-ENEDIOLS

King-Morris, Melinda J.,Serianni, Anthony S.

, p. 29 - 36 (2007/10/02)

The KOH-catalyzed isomerization of D-(1-13C)mannose under anaerobic conditions was studied by 13C-n.m.r. spectroscopy.D-(1-13C)Glucose and D-(1-13C)fructose are generated during the reaction, as expected.In addition, however, (6-13C)glucose, (6-13C)mannose, and (6-13C)fructose are produced in small proportions, possibly via symmetrical 3,4-enediol intermediates.The involvement of the latter structures in 13C-label shifting is inferred from the observation of (1-13C)sorbose and (6-13C)sorbose in the reaction mixture.

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