Acid Blue 9
- CAS No.
- 2650-18-2
- Chemical Name:
- Acid Blue 9
- Synonyms
- Acid Blue 9;BRILLIANT BLUE FCF;ERIOGLAUCINE A;ERIOGLAUCINE;LAKE BRILLIANT BLUE FCF;E133;ci671;AO205;BLUE 4;BLUEFCF
- CBNumber:
- CB4220729
- Molecular Formula:
- C37H39N3O9S3
- Molecular Weight:
- 765.91
- MDL Number:
- MFCD00198069
- MOL File:
- 2650-18-2.mol
- MSDS File:
- SDS
| Melting point | 283 °C (dec.)(lit.) |
|---|---|
| Density | 1.1666 (rough estimate) |
| vapor pressure | 0Pa at 25℃ |
| refractive index | 1.6000 (estimate) |
| storage temp. | Amber Vial, Refrigerator |
| solubility | DMSO (Slightly), Ethyl Acetate (Slightly), Methanol (Slightly) |
| form | Solid |
| color | Dark Blue to Very Dark Purple |
| Water Solubility | 1000g/L at 24.3℃ |
| Stability | Light Sensitive |
| Cosmetics Ingredients Functions |
HAIR DYEING COLORANT |
| InChIKey | QTMKCINNZVKHJT-UHFFFAOYSA-N |
| SMILES | C(=C1C=C/C(=[N+](\CC)/CC2C=CC=C(S([O-])(=O)=O)C=2)/C=C1)(C1C=CC(N(CC)CC2C=CC=C(S(O)(=O)=O)C=2)=CC=1)C1C=CC=CC=1S(O)(=O)=O.N |
| LogP | -3 at 23℃ |
| CAS DataBase Reference | 2650-18-2(CAS DataBase Reference) |
| FDA 21 CFR | 74.1104; 74.2104; 82.1104 |
| EWG's Food Scores | 1-2 |
| FDA UNII | 0KSY80VYS3 |
| Pesticides Freedom of Information Act (FOIA) | Acid Blue 9 |
| EPA Substance Registry System | C.I. Acid Blue 9, diammonium salt (2650-18-2) |
SAFETY
Risk and Safety Statements
| WGK Germany | 3 |
|---|---|
| RTECS | BQ4725000 |
| TSCA | TSCA listed |
| Hazardous Substances Data | 2650-18-2(Hazardous Substances Data) |
| Toxicity | LDLo intravenous in human: 33ug/kg |
| REACH Registrations | Active |
Acid Blue 9 price
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Usbiological | 260344 | Acid Blue 9, Technical grade Dye content Asreported | 2650-18-2 | 500mg | $375 | 2026-06-03 | Buy |
| Usbiological | 260344 | Acid Blue 9, Technical grade Dye content Asreported | 2650-18-2 | 1g | $525 | 2026-06-03 | Buy |
| Usbiological | 260344 | Acid Blue 9, Technical grade Dye content Asreported | 2650-18-2 | 2g | $719 | 2026-06-03 | Buy |
| Usbiological | 260344 | Acid Blue 9, Technical grade Dye content Asreported | 2650-18-2 | 5g | $988 | 2026-06-03 | Buy |
| TRC | TRC-A189815-50MG | Acid Blue 9 (Technical Grade) | 2650-18-2 | 50mg | $91 | 2026-06-03 | Buy |
Acid Blue 9 Chemical Properties, Uses, Production
Description
FD & C Blue No. 1 is principally the disodium salt of ethyl[4-[p- [ethyl(m-sulfobenzyl)amino]-α-(ο-sulfophenyl)benzylidene]2,5-cyclohexadien-l-ylidene](m-sulfobenzyl) ammonium hydroxide inner salt.
The colorant is a dark purple to bronze powder that dissolves in water to give a solution green-blue at neutrality, green in weak acid, and yellow in stronger acid. Addition of base to its neutral solution produces a violet color only on boiling. When dissolvedin concentrated sulfuric acid, it yields a yellow solution that turns green when diluted with water. It is soluble in 95% ethanol. FD & C Blue No. 1 is used in beverages and beverage powders, 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.
Chemical Properties
Blue powder
Uses
Acid Blue 9 (CAS# 2650-18-2) is an organic azo dye. It has been used in the preparation of solar-sensitive liposomes capable of capturing and releasing food dyes for the measurement of sunlight exposure over extended periods of time. Being water soluble, acid blue 9 is often considered a pollutant, and is used as an analyte in the development of azo-dye removal processes.
Definition
ChEBI: Erioglaucine A is an aromatic amine.
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
Not classified
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.
Properties and Applications
colourful green light blue. Violet powder, soluble in water, in 90 ℃ water solubility of 50 g/L, soluble in ethanol. The strong sulfuric acid in orange, dilute yellowish later. The water solution is green light blue dye, add sodium hydroxide after it shows colorless, and you have a deep purple precipitation. Good levelness, white sex is better, for copper, iron ion sensitive, dyeing should pay attention, or influence colored light. This product used for wool, silk,nylonwith wool blended fabric dyeing and printing. Can also be used as a food dyes and organic pigments, also used for paper shading and anti-epidemic field, can also be used in leather color.
| Standard | Light Fastness | Soaping | Persperation Fastness | Oxygen bleaching | Fastness to seawater | |||
| Fading | Stain | Fading | Stain | Fading | Stain | |||
| ISO | 3 | 2-3 | 3 | 3 | 3 | 3 | ||
| AATCC | 1 | 4 | 4 | 2 | 2 | 3-4 | ||
Acid Blue 9 Preparation Products And Raw materials
Raw materials
1of2
Preparation Products
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Chongqing Yuanyuanxiang Technology Development Co. LTD | 023-55703781 15320534687 | 2022434087@qq.com | China | 104 | 58 |
| Winchem Industrial Co. Ltd | 0574-83851061 | info@win-chemical.com | China | 500 | 55 |
| Shanghai JONLN Reagent Co., Ltd. | 400-0066400 13621662912 | 422131432@qq.com | China | 9970 | 55 |
| Chengdu HuaXia Chemical Reagent Co. Ltd | 400-1166-196 13458535857 | cdhxsj@163.com | China | 13323 | 58 |
| Hangzhou J&H Chemical Co., Ltd. | 0571-87396432 | sales@jhechem.com | China | 14905 | 59 |
| Chizhou Kailong Import and Export Trade Co., Ltd. | xg01_gj@163.com | China | 9413 | 50 | |
| Watson Biotechnology Co.,Ltd | 027-59207879 1972026995 18140587686 | sales@3600chem.com | China | 4180 | 55 |
| Alfa Chemistry | 1-516-6625404 | support@alfa-chemistry.com | United States | 9170 | 60 |
| Shanghai YuanYe Biotechnology Co., Ltd. | 15026964105 | 2881489226@qq.com | China | 89667 | 60 |
| Shandong Xiya Chemical Co., Ltd. | 4009903999 13395398332 | sales@xiyashiji.com | China | 20788 | 60 |
View Latest Price from Acid Blue 9 manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2026-09-17 | Acid Blue 9
2650-18-2
|
1KG | 98%min | 30tons/month | WUHAN FORTUNA CHEMICAL CO., LTD | ||
 |
2026-09-11 | Acid Blue 9
2650-18-2
|
25kg | 1 | 20mt | Winchem industrial co limited | ||
 |
2026-08-25 | Acid Blue 9
2650-18-2
|
$2.20-8.80 | 1kg | 99%min | 100kg | ZHENGZHOU JIUYI TIME NEW MATERIALS CO,.LTD |
-
- Acid Blue 9
2650-18-2
- $0.00
- 98%min
- WUHAN FORTUNA CHEMICAL CO., LTD
-
- Acid Blue 9
2650-18-2
- $0.00
- 1
- Winchem industrial co limited
-
- Acid Blue 9
2650-18-2
- $2.20-8.80
- 99%min
- ZHENGZHOU JIUYI TIME NEW MATERIALS CO,.LTD
