Cas 959505-52-3,7-(4-trifluoromethyl-phenyl)-hept-6-ynoic acid

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Check Digit Verification of cas no

The CAS Registry Mumber 959505-52-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,5,9,5,0 and 5 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 959505-52:
(8*9)+(7*5)+(6*9)+(5*5)+(4*0)+(3*5)+(2*5)+(1*2)=213
213 % 10 = 3
So 959505-52-3 is a valid CAS Registry Number.

959505-52-3Upstream product

959505-52-3Downstream Products

889452-38-4 4-methyl-N-[7-(4-trifluoromethyl-phenyl)-hept-6-ynoyl]-benzenesulfonamide

959505-52-3Relevant articles and documents

Lactam synthesis via the intramolecular hydroamidation of alkynes catalyzed by palladium complexes

Patil, Nitin T.,Huo, Zhibao,Bajracharya, Gan B.,Yamamoto, Yoshinori

, p. 3612 - 3614 (2007/10/03)

The palladium complexes catalyzed intramolecular hydroamidation reaction of amidoalkynes gives the corresponding lactams in good to high yields. For example, in the presence of 10 mol % of Pd(PPh3)4 and 20 mol % of PhCOOH, the reacti

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959505-52-3