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204323-40-0

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204323-40-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 204323-40-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,4,3,2 and 3 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 204323-40:
(8*2)+(7*0)+(6*4)+(5*3)+(4*2)+(3*3)+(2*4)+(1*0)=80
80 % 10 = 0
So 204323-40-0 is a valid CAS Registry Number.

204323-40-0Downstream Products

204323-40-0Relevant articles and documents

Practical methodology for the asymmetric synthesis of organofluorine compounds

Myers, Andrew G.,McKinstry, Lydia,Barbay, Joseph K.,Gleason, James L.

, p. 1335 - 1338 (2007/10/03)

Pseudoephedrine α-fluoroacetamide (1), a nonvolatile, crystalline solid, is alkylated efficiently and with high diastereoselectivity with reactive alkyl halides. The alkylation products can be hydrolyzed under mild basic conditions to form α-fluoro carboxylates with high enantiomeric enrichment.

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