Hydroquinone(CAS:123-31-9)
Hydroquinone also known as hydroquinone, is a compound formed by replacing two para-hydrogens of benzene with hydroxyl groups. Hydroquinone is white needle crystal, flammable, soluble in hot water, ether and ethanol, slightly soluble in benzene. It has reducibility. After mild oxidation, brown p-benzoquinone (C6H4O2) is obtained, and p-benzoquinone is reduced to obtain hydroquinone. The p-benzoquinone-hydroquinone redox couple exists in many biomolecules, such as coenzyme Q.
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Azelaic Acid has antibacterial properties and can be used as a food preservative. Use in mouthwashes is conducive to the prevention and treatment of dental caries, and use in soap can prevent the surface of soap from cracking. It has good permeability to the skin, and it can increase the absorption function of the skin when used in cream cosmetics. Azelaic Acid has a variety of medicinal effects and can be used in skin plasters. It has skin lightening and whitening functions.
Hydroquinone is a chemical compound with the molecular formula C6H6O2, widely recognized for its use in skincare and photographic development. In the realm of skincare, it is a popular skin-lightening agent, helping to reduce the appearance of hyperpigmentation, dark spots, and melasma by inhibiting the production of melanin in the skin. However, it has been subject to regulatory scrutiny due to potential side effects, including skin irritation and long-term safety concerns. In the field of photography, hydroquinone is utilized as a developer agent to convert exposed silver halide crystals into photographic images. Its dual role in cosmetics and photography highlights its importance in both personal care and imaging technologies.
Sugar Esters E473, CAS No.37318-31-3 , commonly known as Sucrose esters of fatty acids, manufacturing process by esterifying sucrose with fatty acids. By varying the degree of esterification of the sucrose molecule it is possible to obtain emulsifiers with HLB values ranging from 1 up to 16. It is a light yellow powder, a non-ionic surfactant and is used as an emulsifier in dairy products, baked goods, soft drinks, jelly, cake and candy. Sucrose Fatty Acid Esters are a mixture of mono-, di-, and tri-esters of sucrose with fatty acids derived from edible vegetable or hydrogenated vegetable oils and fats. As an experienced Sugar Esters manufacturer and supplier, we has been supplying and exporting Sugar Esters for almost 10 years, please be assured to buy from us. Any inquiries about price and the market trend please feel free to contact us, we will reply you within 1 working day. Sugar Esters powder Specification ITEM STANDARD RESULTS APPERANCE White crystal powder Conforms ACID VALUE (AS KOHMG/G) Not more than 6 3.0 ARSENIC (AS)MG/KG Not more than Less than 1.0 LEAD (PB) MG/KG Not more than Less than 2.0 CADMIUM MG/KG Not more than Less than1 MERCURY MG/KG Not more than Less than1 OTHER SOLVENT Isopropy 350ppm(incombination) Pass Ethyl acetate 126.7-128C Propylene glycol Pass Isobutyl alcohol 10ppm Pass Methy alcohol 10ppm Pass Methyl Ethyl Ketone 10ppm Pass DIMETHYL SULFOXIDE sulfoxide Not more than 2ppm Pass FREE SUGER(AS SUGER) % Not more that 5% 1.35 DIMETHYLFORMAMIDE Not more than 1ppm Pass WATERCONTENT% Not more than 4% 0.51 LOSS ON IGNITION % Not more that 4% 0.47 HLB VALUE 13
Aluminium tri-sec-butoxide Product Name: Aluminium tri-sec-butoxide CAS: 2269-22-9 MF: C12H27AlO3 MW: 246.32 EINECS: 218-871-2 Mol File: 2269-22-9.mol Chemical Properties Boiling point 40 C density 0.967 g/mL at 25 C(lit.) vapor pressure 23 hPa (195 C) refractive index 1.439 Fp 82 F storage temp. Flammables area solubility Miscible with alcohol, isopropyl alcohol and toluene. form Oily Liquid Specific Gravity 0.9671 color Light yellow Item Specifications Appearance Colorless transparent or light yellow liquid Purity % 99.99 Aluminum content % 10.2-12.5 Density ( g/cm3) 0.92-0.97
Formula:KAl(SO4)2 12H2O Relative Molecular Weight:474.39 CAS NO,: 7784-24-9 EINECS No.:5637-689-7 HS CODE.: 2833301000 Appearance: lump, white crystal, white powder Properties:Colorless, transparent, particle or crystalline powder, odorless, nontoxic, tastes slightly sweet and puckery, astringent, easily soluble in water, its water solution appears acid,is would lose crystal water and become white powder on heating Usage; Food industry: Buffering agents and leavening agents in food-grade products. Chemical Industry: Water Flocculant, aluminum tanning agents and after-treating agents for leather tanning in the leather industry, dyeing agents,Astringents,mordants etc. Items Specifications Potassium aluminum sulfate [AlK(SO4)2.12H2O] % 99.5 Plumbum(Pb) mg/kg 5.0 Arsenic (As) mg/kg 2.0 Fluorine (F) mg/kg 30.0 Selenium (Se) mg/kg 30.0 Moisture % 4.0
2-Naphthol Basic information Chemical Properties Application Preparation Product Name: 2-Naphthol Synonyms: c.i.37500;c.i.azoiccouplingcomponent1;c.i.developer5;Developer A;Developer AMS;Developer BN;developera;developerams CAS: 135-19-3 MF: C10H8O MW: 144.17 EINECS: 205-182-7 Product Categories: Fluorescent;Naphthalene;pigments;alcohol;MICROCIDIN;Color Former & Related Compounds;Developer;Functional Materials;Intermediates;Aromatic Compounds;Alphabetical;Bioactive Small Molecules;Biochemicals and Reagents;Building Blocks;C9 to C20+;Cell Biology;Chemical Synthesis;Fluorescent Indicators and Probes;Fluorescent Probes;Labels;N;Organic Building Blocks;Oxygen Compounds;Particles and Stains;pH Sensitive Probes and Indicators;Phenols;Dyestuff Intermediates;Aromatics Mol File: 135-19-3.mol 2-Naphthol Chemical Properties Melting point 120-122 C(lit.) Boiling point 285-286 C(lit.) density 1,28 g/cm3 vapor density 4.97 (vs air) vapor pressure 10 mm Hg ( 145.5 C) refractive index 1.5762 (estimate) Fp 153 C storage temp. Refrigerator solubility methanol: soluble1g/10 mL, clear, colorless to light yellow pka 9.51(at 25C) form Powder, Crystals or Granules color White PH Range Non& uorescence (8.5) to blue & uorescence (9.5) Water Solubility 1 g/L (20 C) �»max 226nm, 265nm, 275nm, 286nm, 320nm, 331nm Merck 14,6384 BRN 742134 Stability: Stable. Combustible. Dust may form explosive mixture with air. Incompatible with strong oxidizing agents, phenol. Major Application Display device, semiconductors, photoimaging materials, inks, toner, chalk, security paper, molding materials, tin plating method, rubber, adhesive, leather, detergent, hair dyes, antimitotic drug, anticancer agent, antiinflammatory agent, treatment of acne vulgaris (pimples) and other dermal ailments (rashes, scratches, blemishes, hair loss), disorders InChIKey JWAZRIHNYRIHIV-UHFFFAOYSA-N CAS DataBase Reference 135-19-3(CAS DataBase Reference) NIST Chemistry Reference 2-Naphthalenol(135-19-3) EPA Substance Registry System 2-Naphthalenol (135-19-3) Safety Information Hazard Codes Xn,N Risk Statements 20/22-50 Safety Statements 24/25-61 RIDADR UN 3077 9/PG 3 WGK Germany 2 RTECS QL2975000 F 8 Autoignition Temperature 430 C TSCA Yes HazardClass 9 PackingGroup III HS Code 29071590 Hazardous Substances Data 135-19-3(Hazardous Substances Data) Toxicity LD50 orally in Rabbit: 1960 mg/kg LD50 dermal Rabbit > 10000 mg/kg 2-Naphthol Usage And Synthesis 2-Naphthol Preparation Products And Raw materials