Cas 323204-72-4,1-allyl-5-hydroxy-3-methyl-1,5-dihydro-pyrrol-2-one

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Check Digit Verification of cas no

The CAS Registry Mumber 323204-72-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,2,3,2,0 and 4 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 323204-72:
(8*3)+(7*2)+(6*3)+(5*2)+(4*0)+(3*4)+(2*7)+(1*2)=94
94 % 10 = 4
So 323204-72-4 is a valid CAS Registry Number.

323204-72-4Upstream product

17423-10-8 N-allylcitraconimide

323204-72-4Downstream Products

323204-72-4Relevant academic research and scientific papers

Regioselective reduction of maleimide and citraconimide derivatives: General preparation of 5-hydroxy-1,5-dihydropyrrol-2-one

Mase, Nobuyuki,Nishi, Toshiki,Hiyoshi, Masaomi,Ichihara, Kazuhiro,Bessho, Junichiro,Yoda, Hidemi,Takabe, Kunihiko

, p. 707 - 709 (2002)

NaBH4 reduction of citraconimide derivatives regioselectively afforded 5-hydroxy-4-methyl-1,5-dihydropyrrol-2-ones, whereas NaBH4-CeCl3 or DIBAL-H reduction gave 5-hydroxy-3-methyl-1,5-dihydropyrrol-2-ones.

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