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80243-73-8

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80243-73-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 80243-73-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,0,2,4 and 3 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 80243-73:
(7*8)+(6*0)+(5*2)+(4*4)+(3*3)+(2*7)+(1*3)=108
108 % 10 = 8
So 80243-73-8 is a valid CAS Registry Number.

80243-73-8Downstream Products

80243-73-8Relevant articles and documents

(E)-5-Hydroxypyrrolizidin-3-one: Versatile Synthon for the Synthesis of 5-Substituted 2-Pyrrolidones and (Z)-3-Alkylpyrrolizidines

Buchs, Peter,Brossi, Arnold,Flippen-Anderson, Judith L.

, p. 719 - 723 (2007/10/02)

Carbinol lactam 6 of secured stereochemistry served as a synthon to prepare 5-substituted 2-pyrrolidones and pyrrolizidin-3-ones.The relative stereochemistry of 6 and the dithioketal 13, prepared from the keto lactam 11, was established by single-crystal X-ray analysis.Desulfurization of the dithioketals 13 and 14 afforded the 5-n-propylpyrrolizidin-3-ones 15 and 16.Reduction of lactam 15 with LiAlH4 gave the racemic (Z)-3-n-propylpyrrolizidine (17), an analogue of a substance recently detected in ant species.

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