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23171-02-0

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23171-02-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 23171-02-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,3,1,7 and 1 respectively; the second part has 2 digits, 0 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 23171-02:
(7*2)+(6*3)+(5*1)+(4*7)+(3*1)+(2*0)+(1*2)=70
70 % 10 = 0
So 23171-02-0 is a valid CAS Registry Number.

23171-02-0Downstream Products

23171-02-0Relevant articles and documents

MECHANISMS FOR HYDROPEROXYDE DEGRADATION OF DISACCHARIDES AND RELATED COMPOUNDS

Isbell, Horace S.,Frush, Harriet L.

, p. 181 - 194 (2007/10/02)

The ractions of disaccharides with alkaline hydrogen peroxide were studied under diverse conditions.Treatment of cellobiose, lactose, and maltose with aqueous sodium peroxide afforded, in each instance, the corresponding aldobionic acid, the next lower aldobionic acid, 2-O-D-glucopyranosyl-D-erythronic acid, and formic acid.On the other hand, melibiose and gentibiose afforded the corresponding aldobionic acid, the next lower aldobionic acid, and a 2-O-D-glycopyranosylglycolic acid.The yields of products varied widely with the experimental conditions, especially with the proportions of alkali peroxide and hydrogen peroxide.The reactions with alkali peroxide were slow, but rapid in the presence of hydrogen peroxide with the gradual addition of alkali.The results indicate that degradation of carbohydrates by alkaline hydrogen peroxide takes place by five reaction paths.These are designated the alpha-hydroxy hydroperoxyde cleavage-mechanism, the Baeyer-Villiger mechanism, the ester mechanism, the dihydroxy-epoxide mechanism, and a newly proposed peroxy-radical mechanism.The last-named mechanism is more rapid than the others.With an excess of hydrogen peroxide and slow addition of alkali, it results in rapid, stepwise conversion of both reducing and nonreducing saccharides into formic acid.The process begins with formation of a hydroperoxyde adduct of the carbohydrate.Reaction of the adduct with hydrogen peroxide affords a peroxy radical and a hydroxy radical.The peroxy radical decomposes, affording formic acid, the next lower aldose and hydroxyl radical.Hydroxyl radical produced in a chain reaction oxidizes alditols and aldonic acids by reactions analogous to those of the Fenton reagent.

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