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129872-21-5

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129872-21-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 129872-21-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,9,8,7 and 2 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 129872-21:
(8*1)+(7*2)+(6*9)+(5*8)+(4*7)+(3*2)+(2*2)+(1*1)=155
155 % 10 = 5
So 129872-21-5 is a valid CAS Registry Number.

129872-21-5Downstream Products

129872-21-5Relevant articles and documents

Applications of Intramolecular Diels-Alder Reactions to Alkaloid Synthesis. A Formal Total Synthesis of (+/-)-Dendrobine

Martin, Stephen F.,Li, Wei

, p. 642 - 650 (2007/10/02)

A facile synthesis of the tricyclic enone 3 was completed; since 3 was an intermediate in a previous synthesis of (+/-)-dendrobine (1), this achievement constitutes a formal total synthesis of the racemic title alkaloid.The key strategic element of the ap

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