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66496-58-0

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66496-58-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 66496-58-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,6,4,9 and 6 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 66496-58:
(7*6)+(6*6)+(5*4)+(4*9)+(3*6)+(2*5)+(1*8)=170
170 % 10 = 0
So 66496-58-0 is a valid CAS Registry Number.

66496-58-0Relevant articles and documents

Spiro compounds, preparation method thereof, intermediate, pharmaceutical composition and application

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Paragraph 0142; 0145; 0146, (2018/04/02)

The invention discloses a spiro compound as shown in a formula I, a pharmaceutically acceptable salt, a hydrate, a solvate, an optical isomer or a prodrug of the spiro compound, as well as a preparation method, an intermediate, a pharmaceutical composition and an application of the spiro compound. The spiro compound disclosed by the invention has the activity of serving as protein kinase inhibitors and tyrosine kinase inhibitors such as c-Met, and the spiro compound can be used for treating diseases caused by the abnormal activity of kinases, such as cancer, or used for preparing medicaments for treating the diseases.

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