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126065-72-3

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126065-72-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 126065-72-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,6,0,6 and 5 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 126065-72:
(8*1)+(7*2)+(6*6)+(5*0)+(4*6)+(3*5)+(2*7)+(1*2)=113
113 % 10 = 3
So 126065-72-3 is a valid CAS Registry Number.

126065-72-3Relevant articles and documents

REGIOSELECTIVE ACYLATIVE CLEAVAGE OF CYCLIC FORMAL OF CHLORAMPHENICOL

Hazra, B. G.,Pore, V. S.,Maybhate, S. P.,Natekar, M. V.,Rao, A. S.

, p. 1763 - 1770 (2007/10/02)

The amide 6 has been synthesised by reacting the amine 3 with dichloroketene in situ.This amide 6 on nitration gave formal 7, which when reacted with acetic anhydride and p-toluene sulfonic acid underwent regioselective cleavage of the dioxane ring to furnish the hemiacetal 11.This on treatment with methanol-water-ammonia yielded chloramphenicol 2.

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