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99789-21-6

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99789-21-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 99789-21-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,9,7,8 and 9 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 99789-21:
(7*9)+(6*9)+(5*7)+(4*8)+(3*9)+(2*2)+(1*1)=216
216 % 10 = 6
So 99789-21-6 is a valid CAS Registry Number.

99789-21-6Downstream Products

99789-21-6Relevant articles and documents

De-novo Synthesis of Carbohydrates and Related Natural Products, 18. - Hetero-Diels-Alder Reactions for the Synthesis of 3,4-Dihydro-2H-pyrans

Maier, Martin,Schmidt, Richard R.

, p. 2261 - 2284 (2007/10/02)

Hetero-Diels-Alder reactions between α,β-unsaturated carbonyl compounds with functional substituents in α- and β-position and enol ethers, enediol ethers, and ketene acetals, respectively, result in the formation of 3,4-dihydro-2H-pyrans 3, having functio

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