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899717-98-7

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899717-98-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 899717-98-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,9,9,7,1 and 7 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 899717-98:
(8*8)+(7*9)+(6*9)+(5*7)+(4*1)+(3*7)+(2*9)+(1*8)=267
267 % 10 = 7
So 899717-98-7 is a valid CAS Registry Number.

899717-98-7Downstream Products

899717-98-7Relevant articles and documents

Synthesis of the substituted 3-cyclobutene-1,2-diones

Ivanovsky, Sergey A.,Dorogov, Mikhail V.,Kravchenko, Dmitry V.,Ivachtchenko, Alexandre V.

, p. 2527 - 2542 (2008/02/10)

A convenient synthesis of the novel squaric acid derivatives is reported. Unsymmetrically substituted 3,4-diamino-3-cyclobutene-1,2-diones and 3-amino-4-hydroxy-3-cyclobutene-1,2-diones were prepared by interaction of diethyl squarate with different nucle

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