51762-72-2 Usage
General Description
2-NITROISOPHTHALONITRILE is a chemical compound with the molecular formula C8H3N3O4. It is a yellow crystalline solid that is used in the production of dyes and pigments. 2-NITROISOPHTHALONITRILE is known for its strong odor and is considered to be toxic if ingested or inhaled. It is also known to be a skin and eye irritant. The compound is used in various chemical reactions and as a building block in the synthesis of other organic compounds. Additionally, it is utilized in the pharmaceutical industry as an intermediate in the production of certain medications.
Check Digit Verification of cas no
The CAS Registry Mumber 51762-72-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,1,7,6 and 2 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 51762-72:
(7*5)+(6*1)+(5*7)+(4*6)+(3*2)+(2*7)+(1*2)=122
122 % 10 = 2
So 51762-72-2 is a valid CAS Registry Number.
51762-72-2Relevant articles and documents
Water-induced fluorescence quenching of mono- and dicyanoanilines
Oshima, Juro,Yoshihara, Toshitada,Tobita, Seiji
, p. 306 - 311 (2008/02/13)
Photophysical properties of monocyano- (2-, 3-, and 4-cyano) and dicyano- (3,4-, 3,5-, 2,3-, 2,4-, 2,5-, and 2,6-dicyano) anilines are investigated by fluorescence measurements. All the monocyanoanilines are virtually nonfluorescent in water (quantum yield 0.01); however, in nonaqueous solvents (cyclohexane, acetonitrile and ethanol), the fluorescence quantum yield is enhanced substantially. In contrast, dicyanoanilines investigated are highly fluorescent both in aqueous and nonaqueous environments. The photophysical data and MO calculations suggest that conformational changes in the amino group and variation of hydrogen-bonding interactions between the solute and solvent water upon electronic excitation are responsible for the water quenching in the monocyanoanilines.
