6690-51-3 Usage
General Description
4-(2',4'-DINITROPHENYLAZO)-PHENOL, also known as Sudan I, is a synthetic red azo dye commonly used in industrial applications and as a food colorant. It is a bright red powder that is insoluble in water but soluble in organic solvents. Sudan I has been found to be a carcinogen and is known to cause cancer in laboratory animals. Due to its potential health risks, its use as a food additive has been banned in several countries, including the European Union. The compound is also a skin and eye irritant, and exposure to it can cause irritation, inflammation, and allergic reactions. Efforts are being made to limit the presence of Sudan I in the environment and to find safer alternative colorants for industrial and food applications.
Check Digit Verification of cas no
The CAS Registry Mumber 6690-51-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,6,9 and 0 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 6690-51:
(6*6)+(5*6)+(4*9)+(3*0)+(2*5)+(1*1)=113
113 % 10 = 3
So 6690-51-3 is a valid CAS Registry Number.
InChI:InChI=1/C12H8N4O5/c17-10-4-1-8(2-5-10)13-14-11-6-3-9(15(18)19)7-12(11)16(20)21/h1-7,17H/b14-13-
6690-51-3Relevant articles and documents
Responsive ruthenium complex probe for phosphorescence and time-gated luminescence detection of bisulfite
Du, Zhongbo,Liu, Chaolong,Liu, Jianping,Song, Bo,Wang, Yong-Lei,Xi, Xiuyan,Yuan, Jingli,Zhang, Run,Zhang, Wenzhu
, p. 5531 - 5538 (2020/05/13)
Sensitive and selective quantification of specific analytes is of great significance in analytical and environmental sciences, as well as in the food industry. Herein, we report the design, synthesis, characterization, and application of a responsive ruth
A method of preparing azo dye through coupling
-
Paragraph 0039-0042, (2018/05/30)
The invention relates to an azo dye synthetic method, and particularly relates to a method of coupling a weak-alkaline arylamine diazonium salt and a phenol compound under alkaline conditions to prepare azo dye. Weak-alkaline arylamine diazonium salt filt
Concave Functionality: Some Exceptionally Large Binding Constants of Phenol Sticky Hosts
Sheridan, R. E.,Whitlock, H. W.
, p. 4071 - 4073 (2007/10/02)
-
