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1021949-54-1

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1021949-54-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1021949-54-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,2,1,9,4 and 9 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1021949-54:
(9*1)+(8*0)+(7*2)+(6*1)+(5*9)+(4*4)+(3*9)+(2*5)+(1*4)=131
131 % 10 = 1
So 1021949-54-1 is a valid CAS Registry Number.

1021949-54-1Downstream Products

1021949-54-1Relevant articles and documents

Synthesis and biological evaluation of new tacrine analogues under microwave irradiation

Alshareef, Hossa Fahad,Mohamed, Heba Abd El Hady,Salaheldin, Abdellatif Mohamed

, p. 732 - 738 (2017/08/09)

Efficient routes to various kinds of heterocycles incorporating the p-halophenyl moiety have been synthesized. Different pyrrole derivatives have been synthesized, as well, by Thorpe–Ziegler cyclization. Therefore, we synthesized different analogues of tacrine by Friedl?nder reaction of o-amino nitriles (pyrazolo, furano and pyrrolo) with different cycloalkanones. The use of microwave irradiation leads to shorter production times and high product conversion. These synthesized compounds were biologically evaluated by Ellman’s test on acetylcholinesterase inhibition.

Simultaneous synthesis of pyrazolopyridines and pyrazolopyrimidinones under microwave irradiation

Zhang, Li-Jun,Shi, Da-Xin,Li, Jia-Rong

experimental part, p. 4010 - 4018 (2009/12/24)

The direct reaction of o-aminopyrazocarbonitriles and carbonyl compounds to afford pyrazolopyrimidinones was discovered; hence, a simultaneous synthetic method for pyrazolopyridines and pyrazolopyrimidinones was achieved. Under microwave irradiation, bett

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