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503111-24-8

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503111-24-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 503111-24-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,0,3,1,1 and 1 respectively; the second part has 2 digits, 2 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 503111-24:
(8*5)+(7*0)+(6*3)+(5*1)+(4*1)+(3*1)+(2*2)+(1*4)=78
78 % 10 = 8
So 503111-24-8 is a valid CAS Registry Number.

503111-24-8Downstream Products

503111-24-8Relevant articles and documents

One-pot synthesis of a new series of 3-alkoxy-5-hydroxy-5-trifluoromethyl-pyrrolidin-2-ones from 1,1,1-trifluoro-4-alkoxyalk-3-en-2-ones

Zanatta, Nilo,Rosa, Luciana S.,Cortelini, Maria F. M.,Beux, Simone,Santos, Ana P. D.,Bonacorso, Helio G.,Martins, Marcos A. P.

, p. 2404 - 2408 (2002)

The synthesis of a new series of 3-alkoxy-5-hydroxy-5-trifluoromethyl pyrrolidin-2-ones 2a-h from the reaction of 1,1,1-trifluoro-4-alkoxyalk-3-en-2-ones 1a-h of the general formula F3CC(O)C(R2)=C(R1)OR, where: R = Me, Et, -(CH2)2-, -(CH2)3-; R1 = H, Me, Ph, p-Me-Ph, p-F-Ph; and R2 = H, Me, -(CH2)2-, -(CH2)3- with sodium cyanide in hydro-alcoholic medium is reported.

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