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127604-40-4

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127604-40-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 127604-40-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,7,6,0 and 4 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 127604-40:
(8*1)+(7*2)+(6*7)+(5*6)+(4*0)+(3*4)+(2*4)+(1*0)=114
114 % 10 = 4
So 127604-40-4 is a valid CAS Registry Number.

127604-40-4Relevant articles and documents

SYNTHESIS OF 1-OXABICYCLIC β-LACTAM PRECURSORS FROM 4,6-O-BENZYLIDENE-D-ALLAL

Kaluza, Zbigniew,Chmielewski, Marek

, p. 7195 - 7200 (2007/10/02)

Cycloaddition of trichloroacetyl isocyanate to 4,6-O-benzylidene-D-allal 4 followed by N-deprotection of the adduct produces β-lactam 9 with a good yield.Subsequent N-benzylation, 4,6-O-deprotection by hydrogenolysis, and a glycolic cleavage of the vic di

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