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91970-65-9

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91970-65-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 91970-65-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,9,7 and 0 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 91970-65:
(7*9)+(6*1)+(5*9)+(4*7)+(3*0)+(2*6)+(1*5)=159
159 % 10 = 9
So 91970-65-9 is a valid CAS Registry Number.

91970-65-9Downstream Products

91970-65-9Relevant articles and documents

A convenient synthetic approach to dioncoquinone B and related compounds

Khmelevskaya, Ekaterina A.,Pelageev, Dmitry N.

, p. 1022 - 1024 (2019)

A total synthesis of dioncoquinone B and related compounds, including ancistroquinones B, C and malvon A, is presented. The strategy is based on available reagents and can be used as a preparative synthesis of a number of natural and synthetic biologically active (3-alkyl)-2,7,8-di(tri)methoxy(hydroxy)-1,4-naphthoquinones.

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