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223799-38-0

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223799-38-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 223799-38-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,3,7,9 and 9 respectively; the second part has 2 digits, 3 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 223799-38:
(8*2)+(7*2)+(6*3)+(5*7)+(4*9)+(3*9)+(2*3)+(1*8)=160
160 % 10 = 0
So 223799-38-0 is a valid CAS Registry Number.

223799-38-0Relevant articles and documents

Resolution of (±)-mandelic- and (±)-2-(chiorophenoxy)propionic-acid derivatives by crystallization of their diastereomeric amides with (R)- or (S)-α-arylethylamines

Jourdain, Franck,Hirokawa, Takahiko,Kogane, Tamizo

, p. 2509 - 2512 (2007/10/03)

An alternative and cost effective route for the resolution in high ees (95-99%) of (±)-mandelic-and (±)-2-(chlorophenoxy)propionic- acid derivatives is reported. The key step involves the covalent derivatization and separation of their diastereomeric amides with (R)- or (S)-α- arylethylamines.

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