2650-18-2 Usage
Description
Acid Blue 9, also known as FD & C Blue No. 1, is an organic azo dye with the CAS number 2650-18-2. It is characterized by its dark purple to bronze powder form, which dissolves in water to exhibit a green-blue color at neutrality, green in weak acid, and yellow in stronger acid. The dye is soluble in 95% ethanol and is sensitive to copper and iron ions, which can affect its color.
Uses
Used in Textile Industry:
Acid Blue 9 is used as a dye for wool, silk, nylon, and wool blended fabrics in dyeing and printing processes. Its good levelness and whiteness make it a suitable choice for these applications.
Used in Food Industry:
Acid Blue 9 serves as a colorant in various food products, including beverages, dairy products, bakery products, dessert powders, confectionery products, condiments, icings, syrups, jams, jellies, marmalades, liqueurs, and extracts. It is also used for coloring ingested drugs.
Used in Paper Industry:
The dye can be used for paper shading, providing a vibrant color to the paper products.
Used in Anti-Epidemic Field:
Acid Blue 9 is utilized in the anti-epidemic field, although the specific application is not detailed in the provided materials.
Used in Leather Industry:
The dye is also employed in the leather industry for coloring leather products.
Used in Solar-Sensitive Liposomes:
Acid Blue 9 has been used in the preparation of solar-sensitive liposomes, which are capable of capturing and releasing food dyes for the measurement of sunlight exposure over extended periods.
Used in Azo-Dye Removal Processes:
Due to its water solubility and potential environmental impact as a pollutant, Acid Blue 9 is used as an analyte in the development of azo-dye removal processes, helping to mitigate its environmental effects.
Standard:
The light fastness, soaping, perspiration fastness, oxygen bleaching, and fastness to seawater of Acid Blue 9 are rated according to ISO and AATCC standards, with ratings ranging from 1 to 4, indicating its performance in various conditions.
Preparation
2-Formylbenzenesulfonic acid ?and 3-(Ethyl(phenyl)amino)methyl)benzenesulfonic acid condensation, oxidation, and then the product into the ammonium salt or sodium salt.
Flammability and Explosibility
Notclassified
Safety Profile
Human poison by
intravenous route. Human systemic effects
by intravenous route: muscle contractions or
spasticity and dpspnea. Questionable
carcinogen with experimental neoplastigenic
and tumorigenic data. Mutation data
reported. When heated to decomposition it
emits very toxic fumes of NH3, NOx, and SOx.
Standard
Light Fastness
Fading
Stain
ISO
3
AATCC
1
Check Digit Verification of cas no
The CAS Registry Mumber 2650-18-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,6,5 and 0 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 2650-18:
(6*2)+(5*6)+(4*5)+(3*0)+(2*1)+(1*8)=72
72 % 10 = 2
So 2650-18-2 is a valid CAS Registry Number.
InChI:InChI=1/C37H36N2O9S3/c1-3-38(25-27-9-7-11-33(23-27)49(40,41)42)31-19-15-29(16-20-31)37(35-13-5-6-14-36(35)51(46,47)48)30-17-21-32(22-18-30)39(4-2)26-28-10-8-12-34(24-28)50(43,44)45/h5-24H,3-4,25-26H2,1-2H3,(H2-,40,41,42,43,44,45,46,47,48)/p+1
