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98619-37-5

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98619-37-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 98619-37-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,8,6,1 and 9 respectively; the second part has 2 digits, 3 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 98619-37:
(7*9)+(6*8)+(5*6)+(4*1)+(3*9)+(2*3)+(1*7)=185
185 % 10 = 5
So 98619-37-5 is a valid CAS Registry Number.

98619-37-5Downstream Products

98619-37-5Relevant articles and documents

A Cascade Approach for the Synthesis of 5-(Indol-3-yl)hydantoin: An Application to the Total Synthesis of (±)-Oxoaplysinopsin B

Sathieshkumar, Ponnusamy Pon,Anand Saibabu, Metlapalli Durga,Nagarajan, Rajagopal

, p. 3730 - 3740 (2021)

A cascade approach to the synthesis of 5-(indol-3-yl)hydantoin framework has been developed by the reaction of indole with glyoxylic acid/pyruvic acid under a deep eutectic solution, (+)-tartaric acid-dimethylurea. N,N′-Dimethylurea from a deep eutectic solution functions as a reactant as well as a solvent mixture. Isolation of the intermediate, 5-hydroxyhydantoin, and its reaction with indole provides the mechanistic evidence for this reaction. This method was successfully applied in the first total synthesis of an alkaloid, (±)-oxoaplysinopsin B, with an overall yield of 48%.

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