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18852-01-2

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18852-01-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 18852-01-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,8,8,5 and 2 respectively; the second part has 2 digits, 0 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 18852-01:
(7*1)+(6*8)+(5*8)+(4*5)+(3*2)+(2*0)+(1*1)=122
122 % 10 = 2
So 18852-01-2 is a valid CAS Registry Number.

18852-01-2Relevant articles and documents

Synthesis of quaternary carbon-centered indolo[1,2-a]quinazolinones and indazolo[1,2-a]indazolonesviaC-H functionalization

Gogoi, Kongkona,Bora, Bidisha R.,Borah, Geetika,Sarma, Bipul,Gogoi, Sanjib

supporting information, p. 1388 - 1391 (2021/02/22)

An unprecedented Ru(ii)-catalyzed Csp2-H bond activation and annulation reaction of phenylindazolones with diaryl-substituted alkynes and dialkyl-substituted alkynes provided efficient routes for the construction of all-carbon quaternary-centered indolo[1,2-a]quinazolinones and quaternary carbon-centered indazolo[1,2-a]indazolones, respectively. The indolo[1,2-a]quinazolinones were fomedviaCsp2-H activation, alkyne insertion and a 1,2-phenyl shift. Indazolo[1,2-a]indazolones were formed through a cascade reactionviathe formation of exocyclic double bonds containing indolo[1,2-a]quinazolinones.

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