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850254-51-2

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850254-51-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 850254-51-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,0,2,5 and 4 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 850254-51:
(8*8)+(7*5)+(6*0)+(5*2)+(4*5)+(3*4)+(2*5)+(1*1)=152
152 % 10 = 2
So 850254-51-2 is a valid CAS Registry Number.

850254-51-2Relevant articles and documents

Synthesis of [6,6,m]-Tricyclic Compounds via [4+2] Cycloaddition with Au or Cu Catalyst

Kang, Juyeon,Ham, Seunghwan,Seong, Chaehyeon,Oh, Chang Ho

, p. 1039 - 1043 (2021)

We synthesized [6,6,6]- and [6,6,7]-tricyclic compounds via intramolecular [4+2] cycloaddition by gold or copper catalysts. Substrates for cyclization were prepared by coupling reactions between eight types of diyne and four types of aromatic moieties. We have successfully synthesized eleven tricyclic compounds.

The total synthesis of pygmaeocin C

Chin, Chin-Long,Tran, Duong Duc-Phi,Shia, Kak-Shan,Liu, Hsing-Jang

, p. 417 - 420 (2007/10/03)

Making use of a recently developed intramolecular Friedel-Crafts alkylation process as the key operation, the first total synthesis, in racemic form, of pygmaeocin C has been achieved. Georg Thieme Verlag Stuttgart.

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