1229-55-6 Usage
Description
Solvent Red 1, also known as Sudan Red G, is a yellowish-red lysochrome azo dye belonging to the Sudan dyes group of organic compounds. It appears as an odorless reddish-orange powder with a melting point of 225°C. Solvent Red 1 is soluble in fats and is commonly used for coloring fats, oils, waxes, and various other materials. It is also stable up to temperatures of 100-110°C and was formerly used as a food dye.
Uses
Used in Oil, Wax, and Cultural and Educational Supplies Coloring:
Solvent Red 1 is used as a coloring agent for oils, waxes, and cultural and educational supplies due to its solubility in fats and its ability to provide a vibrant red to yellow-red-orange color.
Used in Environmental Testing:
Solvent Red 1 is utilized in environmental testing for the detection of dyes and their metabolites, which can be harmful to the environment.
Used in Temporary Tattoos:
Although it can cause contact dermatitis, Solvent Red 1 is used in some temporary tattoo applications due to its colorfast properties.
Used in Hair Dyes:
Solvent Red 1 is also employed as a component in hair dyes, contributing to the red coloration of the product.
Used in Red Smoke Signals and Smoke-screens:
Solvent Red 1, in combination with Disperse Red 11, is a component of newer formulas for red smoke signals and smoke-screens, providing the desired red color for these applications.
Preparation
O-Anisidine diazotization, and Naphthalen-2-ol coupling.
Safety Profile
An eye irritant. When
heated to decomposition it emits toxic
fumes of NOx.
Standard
Light Fastness
Melting point
Stable
ISO
Poor-General
Check Digit Verification of cas no
The CAS Registry Mumber 1229-55-6 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,2,2 and 9 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1229-55:
(6*1)+(5*2)+(4*2)+(3*9)+(2*5)+(1*5)=66
66 % 10 = 6
So 1229-55-6 is a valid CAS Registry Number.
InChI:InChI=1/C17H14N2O2/c1-21-16-9-5-4-8-14(16)18-19-17-13-7-3-2-6-12(13)10-11-15(17)20/h2-11,20H,1H3/b19-18+
1229-55-6Relevant articles and documents
An environmentally friendly approach to the green synthesis of azo dyes with aryltriazenes via ionic liquid promoted C-N bonds formation
Zhang, Yonghong,Liu, Yonghong,Ma, Xiaoqian,Ma, Xia,Wang, Bin,Li, Hongguang,Huang, Yan,Liu, Chenjiang
, p. 438 - 444 (2018/06/14)
An efficient and green approach for the synthesis of azo dyes has been developed via the Br?nsted acidic ionic liquid (IL) promoted diazo coupling reaction of naphthols with aryltriazenes. The reaction was carried out with the aryltriazenes as diazotizing
