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877203-68-4

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877203-68-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 877203-68-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,7,7,2,0 and 3 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 877203-68:
(8*8)+(7*7)+(6*7)+(5*2)+(4*0)+(3*3)+(2*6)+(1*8)=194
194 % 10 = 4
So 877203-68-4 is a valid CAS Registry Number.

877203-68-4Relevant academic research and scientific papers

The Neber route to substituted indoles

Taber, Douglass F.,Tian, Weiwei

, p. 1058 - 1059 (2007/10/03)

Two complementary procedures have been developed for the conversion of the oximes of α-aryl ketones to azirines. On heating, the azirines rearrange smoothly to the corresponding indoles. The overall transformation offers a versatile route to indoles, complementary to the Fischer indole synthesis. Copyright

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