Name | allura red ac |
Synonyms | Fancy red Allura?Red AC allura red ac c.i.foodred17 alluraredacdye C.I. Food Red 17 Allura red AC dye C.I. Food Red 17 - disodium salt 6-hydroxy-5-((6-methoxy-4-sulfo-m-tolyl)azo)-2-naphthalenesulfonicacidiso 2-naphthalenesulfonicacid,6-hydroxy-5-[(2-methoxy-5-methyl-4-sulfophenyl)azo] 2-Naphthalenesulfonicacid,6-hydroxy-5-[(2-methoxy-5-methyl-4-sulfophenyl)azo]-,disodiumsalt disodium 6-hydroxy-5-[(E)-(2-methoxy-5-methyl-4-sulfonatophenyl)diazenyl]naphthalene-2-sulfonate disodium (5E)-5-[(2-methoxy-5-methyl-4-sulfonatophenyl)hydrazono]-6-oxo-5,6-dihydronaphthalene-2-sulfonate |
CAS | 25956-17-6 |
EINECS | 247-368-0 |
InChI | InChI=1/C18H16N2O8S2.2Na/c1-10-7-14(16(28-2)9-17(10)30(25,26)27)19-20-18-13-5-4-12(29(22,23)24)8-11(13)3-6-15(18)21;;/h3-9,21H,1-2H3,(H,22,23,24)(H,25,26,27);;/q;2*+1/p-2/b20-19+; |
Molecular Formula | C18H17N2NaO8S2 |
Molar Mass | 476.45 |
Density | 0.448[at 20℃] |
Melting Point | >300°C(lit.) |
Boling Point | 325.16℃[at 101 325 Pa] |
Water Solubility | 53.878g/L at 25℃ |
Solubility | Soluble in water, insoluble in ethanol. |
Vapor Presure | 0Pa at 25℃ |
Appearance | Dark red powder or particles |
Color | Dark red |
Maximum wavelength(λmax) | ['504 nm'] |
Merck | 14,284 |
Storage Condition | Inert atmosphere,Room Temperature |
Stability | Very Hygroscopic, Light Sensitive |
MDL | MFCD00059526 |
Physical and Chemical Properties | Dark red powder, odorless. Soluble in water, glycerol and propylene glycol, ethanol-soluble, insoluble in oil. It is red in neutral and acidic aqueous solutions, and dark red in alkaline conditions. Light resistance, good heat resistance, alkali resistance, resistance to oxidation and reduction of poor. Mouse oral LD5010g/kg,Adl 0~7 mg/kg(FAO/WHO,1994). Allura red aluminum Lake is orange-red fine powder, odorless. Insoluble in water and organic solvents, in acidic or alkaline medium will slow dissolution of allura red. TOXICITY See Allura red. |
Safety Description | S22 - Do not breathe dust. S24/25 - Avoid contact with skin and eyes. |
WGK Germany | 2 |
RTECS | QK2260000 |
HS Code | 29270000 |
Reference Show more | 1. Gong member of the Standing Committee of Ma Yu Yang Rui Ruan Yanwei Wang xue gui Liu Yue. Effect of nozzle type on spray performance of plant protection unmanned aerial vehicle [J]. China Agricultural Science 2020 53(12):2385-2398. 2. Han qunqi, Zhu Yan, Pan Jiangling, Chen Anliang. Preparation and application performance of rosin Diene spray additive [J]. Journal of pesticide science, 2021,23(01):176-182. 3. Wu, Ming, et al.. ACS applied materials & interfaces 10.9 (2018): 8287-8295.https://doi.org/10.1021/acsami.8b00164 4. [IF=9.229] Ming Wu et al."Detection of Sudan Dyes Based on Inner-Filter Effect with Reusable Conjugated Polymer Fibrous Membranes."Acs Appl Mater Inter. 2018;10(9):8287-8295 |
color index | 16035 |
biological field application | Antifungal formulation; treating bone metabolic diseases,coughing,sneezing,rhinorrhea,nasal obstruction,periodontal disease,rhinitis |
LogP | -1.283 at 27℃ |
EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
application | allure red is a kind of food coloring, which is bright dark red and monochromatic. The pigment has excellent stability and is widely used in the coloring of food, beverage, medicine, cosmetics, feed, tobacco, toys, food packaging materials, etc. Water-soluble synthetic pigment, bright crimson, applied to the coloring of candy coating, ice cream, ice cream, candy, cakes, beverages, etc. |
identification test | weigh about 0.1g of sample, dissolve in 1000ml of water, and show a red clear solution. Take 40ml of the above red clear solution, add 10ml of 1% sulfuric acid solution, the solution is dark purple red, take 2~3 drops of this solution and add 5ml of water to make a red solution. Weit 0.1g sample, dissolve in 100ml of ammonium acetate solution (1.5g/L), take 1ml of this solution and add 1.5g/L ammonium acetate solution to 100ml, the maximum absorption wavelength of this solution is 499nm ± 2nm. |
content analysis | FAO/WHO method was determined according to method 2 in OT-1. The sample amount is 0.5~0.6g. |
toxicity | ADI 0~7 mg/kg(FAO/WHO,2001). LD50>10g/kg (mouse, oral) European Community countries, Norway, Sweden, Japan, Australia, Finland. The United States has been in use since 2004. |
usage limit | I.GB 2760-2002(g/kg): candy 0.3; Candy coating 0.085; Ice cream, ice cream 0.07; Fried chicken seasoning 0.04; Juice (flavored) drinks, carbonated drinks, puffed foods, fried snacks, 0.1; Solid beverage 0.6; popsicles, candy, pastry color, red and green silk, canned dyed cherries, sausage casings, fruit juice drinks, prepared wine (except lake),0.05; Jelly powder, solid beverage 0.025 (calculated by 6 times dilution); Dried apples (oatmeal flavoring and coloring carrier), cocoa corn flakes (instant breakfast cereal),0.07. |
use | as food colorant, China stipulates that it can be used for candy coating with a maximum usage of 0,085 g/kg; The maximum usage in fried chicken seasoning is 0,04 g/kg; The maximum usage in ice cream is 0,07 g/kg. It is used as a color developing agent for dyeing and printing of cotton and viscose fabrics, and also as a dye intermediate It is used as a colorant in food, medicine and cosmetics Edible red pigment. |
Production method | Sodium 2-methyl-4-amino-5-methoxybenzene sulfonate is diazotized and coupled with-naphthol -6-sodium sulfonate. The corresponding aluminum lake can be made. The preparation of allure red is a product obtained by diazotization of sodium 2-methyl -4-amino -5-methoxybenzene sulfonate and coupling with sodium 2-naphthol -6-sulfonate. Preparation of allure red aluminum ingot Add allure red aqueous solution to the alumina hydrate formed by the interaction of aluminum sulfate, aluminum chloride aqueous solution and sodium carbonate to make it adsorb and precipitate to obtain the product. |
toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |