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ethoxycarbonyl 4-[7-(diethylamino)-2-oxo-2H-1-benzopyran-3-yl]benzoate is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

203256-19-3

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203256-19-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 203256-19-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,3,2,5 and 6 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 203256-19:
(8*2)+(7*0)+(6*3)+(5*2)+(4*5)+(3*6)+(2*1)+(1*9)=93
93 % 10 = 3
So 203256-19-3 is a valid CAS Registry Number.

203256-19-3Relevant academic research and scientific papers

4-(7-diethylaminocoumarin-3-yl)benzoyl cyanide (DACB-CN): A highly sensitive fluorescent derivatization reagent for alcohols in high-performance liquid chromatography

Takechi, Haruko,Goto, Yasuo,Machida, Minoru

, p. 159 - 162 (1998)

4-(7-Diethylaminocoumarin-3-yl)benzoyl cyanide (DACB-CN) was synthesized as a new fluorescent derivatization reagent for alcohols for use in high- performance liquid chromatography. Saturated alcohols (C8-C22) were derivatized in goo

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