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697762-63-3

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697762-63-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 697762-63-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,9,7,7,6 and 2 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 697762-63:
(8*6)+(7*9)+(6*7)+(5*7)+(4*6)+(3*2)+(2*6)+(1*3)=233
233 % 10 = 3
So 697762-63-3 is a valid CAS Registry Number.

697762-63-3Downstream Products

697762-63-3Relevant articles and documents

egypt for pulls Wei intermediate and its preparation method and application

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, (2016/12/01)

The invention discloses an elvitegravir intermediate and a preparation method and application thereof. The elvitegravir intermediate has a chemical structure shown as FORMULA II, in which X is Cl, Br or I, and a chemical structure shown as FORMULA III. Application of the elvitegravir intermediate to synthesis of elvitegravir has the advantages as follows: simple preparation process, mild reaction conditions, cheap and easily-available raw materials, high total molar yield, simple posttreatment, high product purity and the like, is very suitable for large-scale production and has a great significance and a practical value for low-cost and large-scale preparation of high-purity elvitegravir.

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