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1171887-62-9

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1171887-62-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1171887-62-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,7,1,8,8 and 7 respectively; the second part has 2 digits, 6 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1171887-62:
(9*1)+(8*1)+(7*7)+(6*1)+(5*8)+(4*8)+(3*7)+(2*6)+(1*2)=179
179 % 10 = 9
So 1171887-62-9 is a valid CAS Registry Number.

1171887-62-9Relevant academic research and scientific papers

Tandem palladium-catalyzed addition cyclocarbonylation: An efficient synthesis of 2-heteroquinazolin-4(3H)-ones

Zeng, Fanlong,Alper, Howard

supporting information; experimental part, p. 1188 - 1191 (2010/05/02)

Chemical Equation Presented A highly practical and efficient method for the synthesis of 2-heteroquinazolin-4(3H)-ones has been developed by a palladium-catalyzed tandem reaction. Under mild reaction conditions (80 °C, 100 psi), a wide variety of 2-heteroquinazolin-4(3H)-ones were obtained in good to excellent yields.

Copper-catalyzed cascade addition/cyclization: An efficient and versatile synthesis of N-substituted 2-heterobenzimidazoles

Lv, Xin,Bao, Weiliang

supporting information; experimental part, p. 5618 - 5621 (2009/12/08)

(Chemical Equation Presented) A novel and efficient one-pot synthesis of various N-substituted 2-heterobenzimidazoles has been developed. Through a Cu(I)-catalyzed cascade intermolecular addition/intramolecular C-N coupling process, a wide variety of 2-he

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