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1233943-89-9

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1233943-89-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1233943-89-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,3,3,9,4 and 3 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1233943-89:
(9*1)+(8*2)+(7*3)+(6*3)+(5*9)+(4*4)+(3*3)+(2*8)+(1*9)=159
159 % 10 = 9
So 1233943-89-9 is a valid CAS Registry Number.

1233943-89-9Downstream Products

1233943-89-9Relevant articles and documents

One-step synthesis of 1-(4,5-diphenylpyrimidin-2-yl)thiourea

Han, Wen-Yong,Zhang, Zun-Ting,Zhang, Ying-Chun,Xue, Dong,Li, Gang

experimental part, p. 1641 - 1649 (2010/12/24)

A simple and straightforward methodology toward the synthesis of novel 1-(4,5-diphenylpyrimidin-2-yl)thiourea has been developed by a one-step reaction of isoflavones with amidinothiourea. A series of 16 new compounds was synthesized. All compounds were characterized by FT-IR, NMR, and elemental analysis. The structure of a typical compound was established by X-ray diffraction. Avariety of substrates can participate in the process with good yields and high purities, making this methodology suitable for library synthesis in drug discovery.

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