442151-46-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 442151-46-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,4,2,1,5 and 1 respectively; the second part has 2 digits, 4 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 442151-46:
(8*4)+(7*4)+(6*2)+(5*1)+(4*5)+(3*1)+(2*4)+(1*6)=114
114 % 10 = 4
So 442151-46-4 is a valid CAS Registry Number.
442151-46-4Relevant academic research and scientific papers
Xanthamide fluorescent dyes
Gao, Jianxin,Wang, Poguang,Giese, Roger W.
, p. 6397 - 6401 (2007/10/03)
Two derivatives of fluorescein, termed "xanthamides," were prepared from fluorescein, an inexpensive dye. Relative to fluorescein, which contains a 6-phenolic OH and a 2′-carboxyl, the first derivative (5) contains a carboxymethyl ether at the 6-position
