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34817-25-9

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34817-25-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 34817-25-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,4,8,1 and 7 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 34817-25:
(7*3)+(6*4)+(5*8)+(4*1)+(3*7)+(2*2)+(1*5)=119
119 % 10 = 9
So 34817-25-9 is a valid CAS Registry Number.

34817-25-9Relevant articles and documents

ALKYLATION OF SULFONATE ANIONS VIA SUBSTRATE-REAGENT ION-PAIR (SRIP) REACTIONS OF BETYLATES. PREPARATION OF ALKYL ESTERS OF HYDROXYALKANESULFONIC ACIDS

King, J. F.,Aslam, M.

, p. 3573 - 3576 (1981)

Betylate sulfonates (4 or 8) give alkyl sulfonate esters (6) in refluxing toluene or benzene, chiral esters being formed with inversion.Preparation of alkyl hydroxyalkanesulfonates in this way (a) is a simple route to a little-known class of compounds,

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