PONCEAU 4R
New Coccine
CAS: 2611-82-7
Molecular Formula: C20H15N2NaO10S3
PONCEAU 4R - Names and Identifiers
PONCEAU 4R - Physico-chemical Properties
| Molecular Formula | C20H15N2NaO10S3 |
| Molar Mass | 562.51 |
| Density | 1.772[at 20℃] |
| Melting Point | >300oC |
| Water Solubility | 305.21g/L at 20℃ |
| Solubility | Soluble in water, soluble in glycerin, slightly soluble in ethanol, insoluble in grease. |
| Vapor Presure | 0Pa at 25℃ |
| Appearance | Red to crimson powder |
| Color | Bordeaux to brown |
| BRN | 4122340 |
| Storage Condition | Inert atmosphere,Room Temperature |
| Stability | Hygroscopic |
| MDL | MFCD00004084 |
| Physical and Chemical Properties | Red to deep red powder, the aqueous solution is red, odorless. Soluble in water, soluble in glycerol, ethanol-soluble, insoluble in oil. Light resistance, acid resistance is good, citric acid, tartaric acid stability, resistance to bacteria is poor, heat resistance, resistance to reduction is quite poor. It turned brown in alkaline solution. Maximum absorption wavelength (508±2)nm. Rat oral LD50 is greater than 8000mg/kg, mice oral LD5019300mg/kg, ADI 0-4mg/kg(FAO/WHO,1994). Carmine aluminum Lake is Red fine powder, odorless. Light resistance, heat resistance than Carmine good, insoluble in water and organic solvents. |
| Use | Used as food colorant, Drug and Cosmetic colorant |
PONCEAU 4R - Risk and Safety
| Safety Description | S22 - Do not breathe dust. S24/25 - Avoid contact with skin and eyes. |
| WGK Germany | 2 |
| RTECS | QJ6530000 |
| HS Code | 32041200 |
| Toxicity | LD50 oral in rat: > 8gm/kg |
PONCEAU 4R - Upstream Downstream Industry
| Raw Materials | Hydrochloric acid |
PONCEAU 4R - Reference
| Reference Show more | 1. Wu, Ming, et al. "Detection of Sudan dyes based on inner-filter effect with reusable conjugated polymer fibrous membranes." ACS applied materials & interfaces 10.9 (2018): 8287-8295.https://doi.org/10.1021/acsami.8b00164 2. [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 |
PONCEAU 4R - Nature
Open Data Verified Data
red uniform powder. Soluble in water, red, slightly soluble in alcohol, insoluble in other organic solvents. The solution of concentrated sulfuric acid was purple, and the solution of concentrated nitric acid was yellow. The solution of concentrated hydrochloric acid was red, and the solution of sodium hydroxide was brown.
Last Update：2024-01-02 23:10:35
PONCEAU 4R - Preparation Method
Open Data Verified Data
by 1, 4-aminonaphthalene sodium sulfonate aqueous solution and hydrochloric acid reaction precipitation 1-Naphthylamine -4-sulfonic acid crystal, its diazotization, and then with G sodium aqueous solution coupling, after separation, dry.
Last Update：2022-01-01 10:08:57
PONCEAU 4R - Introduction
Soluble in water is red, slightly soluble in alcohol and fibrinolytic, insoluble in other organic solvents. It is purple in case of concentrated sulfuric acid, red and orange after dilution, and yellow in case of concentrated nitric acid. Its aqueous solution is red with concentrated hydrochloric acid. The sodium hydroxide solution is brown. Colour Index Number 16255
Last Update：2022-10-16 17:24:06
PONCEAU 4R - Use
Open Data Verified Data
for food coloring. Also used for wool, silk, nylon, leather, paper, plastic, wood, medicine and cosmetics dyeing.
Last Update：2022-01-01 10:08:57
PONCEAU 4R - Reference Information
| color index | 16255 |
| LogP | -2.267 at 20℃ |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| application | carmine as food pigment can be used for coloring fruit juice drinks, prepared wine, carbonated drinks, candy, cakes, ice cream, yogurt and other foods, but cannot be used in dried meat, preserved meat products, aquatic products and other foods, mainly to prevent some illegal elements from using pigment to cover up the appearance of bad raw meat such as spoiled meat, deceiving consumers. according to the provisions of China's "hygienic standard for the use of food additives" (GB2760-1996), carmine has the same application scope and maximum amount as amaranth, and can also be used in candy-colored clothing and soy milk beverages, with a maximum amount of 0.1 g/kg. The maximum usage of red sausage casing is 0.025 g/kg and the residual amount is 0.01 g/kg [1]. |
| use | edible red 102 pigment (carmine pigment) is a Japanese edible synthetic pigment (Japan guisi huacheng co., ltd.), with a content of more than 85%, in powder form and an original Japanese package of 5kg/barrel. it is mainly used for the production and processing of various foods. the produced product has bright color, light resistance and high temperature resistance, and will not fade after long-term storage. as a food colorant, China stipulates that it can be used in red and green silk, canned dyed cherries (for decoration) and candy coating, with a maximum usage of 0.1 g/kg; In various beverages, prepared wine, candy, pastries, green plum, hawthorn products, impregnated side dishes and shrimp (flavor) slices, the maximum usage is 0.05 g/kg, and in soy milk beverages, sausage casings and ice cream, the maximum usage is 0.025 mg/kg. it is mainly used for dyeing silk, wool and nylon fabrics, and can also be used for dyeing leather, paper, hemp and grass as food colorant, medicine and cosmetics colorant as food colorant, it can be used in red and green silk, dyed cherry cans (for decoration) and candy coating according to regulations of our country, with a maximum usage of 0.1 g/kg, the maximum usage amount is 0.05 g/kg in various beverages, prepared wine, candy, pastries, green plum, hawthorn products, impregnated side dishes and shrimp (flavor) slices, and 0.025 g/kg in soy milk beverages, sausage casings and ice cream. Eat red pigment. Acid red R can be used for dyeing wool, silk, nylon and direct printing of fabrics. Because the dyeing fastness and levelness are poor, and the color light is not as bright as acid red G, wool textiles are rarely used. It can also be used for coloring leather, paper, wood products, plastics, ink, cosmetics, medicine, food, etc. It is used for dyeing wool, silk, nylon and their blended fabrics, and also for dyeing leather, paper, plastic, wood, medicine and cosmetics. It can also be used to make ink. Used for coloring food, medicine and daily cosmetics. |
| content analysis | method is the same as "amaranth (17004)". Per mL1.0mol/L titanium trichloride solution is equivalent to 0.1511g of carmine. |
| toxicity | ADI 0~4 mg/kg(FAO/WHO,2001). LD5019 300mg/kg (mice, oral). Norway and the United States are not allowed to use it. |
| usage limit | GB 2760-2001(g/kg): juice (flavor) drinks, carbonated drinks, prepared wine, candy, pastries, green plums, hawthorn products, stained side dishes, wafer biscuit sandwich, kumquat, jiayingzi, dried peaches, plum, dried bayberry, shrimp (mi) slices, ice cream, ice cream, popsicles, all 0.05; red and green silk, dyed cherry (decorative), candy coating, 0.10; soymilk beverage, sausage casing, puffed food, jelly, 0.025; Flavor-made liquid milk, flavor-made yogurt, 0.15. |
| production method | 1,4-naphthalenesulfonate sodium diazotization, coupled with G salt. Raw material consumption quota: 340 kg/t of g salt (100%) and 224 kg/t of 1, 4-naphthalenesulfonate sodium (100%). using 1,4-naphthalenesulfonic acid and g acid (2-naphthol-6, 8-disulfonic acid) as raw materials, 1,4-naphthalenesulfonic acid is diazotized and coupled with g acid to obtain the product. The finished product is salted out, filtered, dried and crushed.. It is obtained by diazotization of 4-amino -1-naphthalene sulfonic acid (naphthionic acid), coupling reaction with 2-naphthol -6,8-disulfonate sodium, salting out with sodium chloride, and refining. preparation of carmine sodium 1-naphthylamine -4-sulfonate is dissolved in 8-9 times the amount (mass) of water at 75-85 ℃, filtered and cooled to 0-5 ℃; Then add the original sodium salt 1.2-1.5 times the amount (mass) of hydrochloric acid, stir and let stand, precipitate fine crystals of 1-naphthylamine -4-sulfonic acid, and cool them to below 5 ℃; slowly add 1:2 (mass) sodium nitrite solution at 3~5 ℃ for diazotization to obtain a slightly yellow pasty diazonium solution. After the reaction, the feed solution is strongly acidic (blue) to Congo red test paper. Stir and dissolve sodium G (2-naphthol -6,8-disulfonate sodium) in 9-10 times the amount (mass) of 60-65 ℃ water, then add part of sodium carbonate (1/5 of the total amount), dissolve and filter; The filtrate is put into the reaction kettle, then the rest of the sodium carbonate is added, stirred and cooled to 5-8 ℃, and then at 10-15 ℃ and the Ph value is 8, slowly add diazo liquid for coupling reaction for several hours. After the reaction is completed (2-naphthol -6,8-sodium disulfonate is slightly excessive), the temperature is raised to 50~60 ℃, refined sodium chloride is added, stirred, and it is naturally cooled to room temperature, and the crystallization is precipitated by standing. The crystallization is stirred and dissolved in 15 times the amount (mass) of 70 ℃ clean water, and an appropriate amount of sodium carbonate is added to make the solution slightly alkaline. After filtration, add refined salt, stir and adjust the Ph value to 6.5~7.0 with hydrochloric acid, let it stand for crystallization, separate and dry to obtain the product. Preparation of Carmine Aluminum Lake The aluminum hydroxide is prepared from aluminum salts such as aluminum chloride, aluminum sulfate, etc. and bases such as sodium carbonate, and is added to the carmine aqueous solution to precipitate the product. (1) preparation of carmine. Dissolve sodium 1-naphthylamine -4-sulfonate in 8-9 times the amount (mass) of water at 75-85 ℃, filter and cool to 0-5 ℃; Then add the original sodium salt 1.2-1.5 times the amount (mass) of hydrochloric acid, stir and stand, precipitate fine crystals of 1-naphthylamine -4-sulfonic acid, and cool them to below 5 ℃; Slowly add 1:2 (mass) sodium nitrite solution is diazotized to obtain a yellowish pasty diazonium solution. After the reaction, the feed solution is strongly acidic (blue) to Congo red test paper. Stir and dissolve sodium G (2-naphthol -6,8-disulfonate) in 9-10 times (mass) 60-65 ℃ water, then add part of sodium carbonate (1/5 of the total amount), dissolve and filter; The filtrate is put into the reaction kettle, then the rest of sodium carbonate is added, stirred and cooled to 5-8 ℃; At 10-15 ℃ and PH 8, slowly add diazo liquid for coupling reaction for several hours. After the reaction is completed (2-naphthol -6,8-sodium disulfonate is slightly excessive), the temperature is increased to 50-60 ℃, refined sodium chloride is added, stirred, and then it is naturally cooled to room temperature, and the crystallization is precipitated by standing. The crystallization is stirred and dissolved in 15 times the amount (mass) of 70 ℃ clean water, and an appropriate amount of sodium carbonate is added to make the solution slightly alkaline. After filtration, add refined salt, stir and adjust PH to 6.5-7.0 with hydrochloric acid, and let it stand for crystallization, separation and drying to obtain the product. (2) Preparation of Carmine Aluminum Lake. Aluminum hydroxide is prepared from aluminum salt such as aluminum chloride, aluminum sulfate and alkali such as sodium carbonate, and added to carmine aqueous solution to precipitate the product. |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-09 20:45:29
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PONCEAU 4R
1-[(8-PHENYL-1,6-NAPHTHYRIDIN-2-YL)CARBONYL]PIPERIDIN-4-OL
二元基磷酸钠盐
阿洛酮糖腺苷
LABOTEST-BB LT00455447
Methyl 4-fluoro-3-hydroxybenzoate
N-(2-乙酰基-3,4-二甲氧基苯基)-3-氟苯甲酰胺
kcafoodcolamarantha
1-Boc-4-氰基-4-苯基哌啶
1-[(8-PHENYL-1,6-NAPHTHYRIDIN-2-YL)CARBONYL]PIPERIDIN-4-OL
二元基磷酸钠盐
阿洛酮糖腺苷
LABOTEST-BB LT00455447
Methyl 4-fluoro-3-hydroxybenzoate
N-(2-乙酰基-3,4-二甲氧基苯基)-3-氟苯甲酰胺
kcafoodcolamarantha
1-Boc-4-氰基-4-苯基哌啶
Raw Materials for PONCEAU 4R