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81733-98-4

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81733-98-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 81733-98-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,7,3 and 3 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 81733-98:
(7*8)+(6*1)+(5*7)+(4*3)+(3*3)+(2*9)+(1*8)=144
144 % 10 = 4
So 81733-98-4 is a valid CAS Registry Number.

81733-98-4Downstream Products

81733-98-4Relevant articles and documents

SYNTHESIS OF γ-KETOPIMELIC ACID DERIVATIVES BY RHODIUM CARBONYL-CATALYZED HYDROCARBONYLATION OF ACRYLIC ACID DERIVATIVES

Hong, Pangbu,Mise, Takaya,Yamazaki, Hiroshi

, p. 361 - 364 (1982)

The rhodium carbonyl-catalyzed reactions of acrylic acid derivatives (1) with CO in iso-propanol gave selectively γ-ketopimelic acid derivatives (2) in good yields.In the reaction of ethyl acrylate (1b) in iso-propanol-d8, deuterium scrambling in the methylene groups of the products (2b) was observed.

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