Supply Skin Whitening Powder Hydroquinone 99% CAS 123-31-9

• CAS No.: CAS 123-31-9
• Formula: C6h6o2
• EINECS: 204-617-8
• Type: Pharmaceutical Intermediates
• Appearance: Powder
• Quality: Refined
• Model NO.: TGY-2023051603
• Colour: White
• Product Name: Hydroquinone
• Sample: Avaliable
• Shelf Life: 2 Years
• MW: 110.11
• MOQ: 1kg
• Transport Package: 1kg/Foil Bag 25kg/Drum
• Specification: HPLC 99%
• Trademark: TGY
• Origin: Xi′an, Shaanxi, China
• HS Code: 2916310000
• Production Capacity: 5500kg/Month

Product Description

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.

Product Name	Hydroquinone
Synonyms	Quinol; 1,4-Benzenediol; 1,4-Dihydroxybenzene
CAS NO.	123-31-9
Molecular Formula	C6H6O2
Molecular Weight	110.11
EINECS	204-617-8
Appearance	White Crystalline Powder
Purity	99.9% Min

1. Hydroquinone is mainly used as developing agent in photograph

2. Antioxidant for rubber and gasoline, dye intermediate, etc.

3. Polymerization inhibitor for styrene, butadiene, isoprene, vinyl acetate, acrylonitrile and other resin or rubber monomers

4. Polymerization for styrene, acrylic and other vinyl monomers, terminating agent or stabilizer for high-temperature emulsion polymerization reaction

5. Developer in photoengraving

1.Hydroquinone is mainly used as a photographic developer.
2.Hydroquinone and its alkylate are widely used as polymerization inhibitors in monomer storage and transportation, and the concentration is usually about 200ppm.
3.Hydroquinone monomethyl ether is an intermediate of edible oil antioxidant BHA; hydroquinone dimethyl ether is an intermediate of dyes, organic pigments and perfumes; hydroquinone diethyl ether is an intermediate of photosensitive pigments and dyes .
4.Hydroquinone is also used in the preparation of N, N'-diphenyl-p-phenylenediamine, which is an antioxidant and anti-odor agent for rubber and gasoline.
5.Photometric determination of phosphorus, magnesium, niobium, copper, silicon and arsenic. Polarographic and volumetric determination of iridium. Reducing agent of heteropoly acid, reducing agent of copper and gold.
6.In the field of water treatment, adding hydroquinone to the hot water and cooling water of the closed-circuit heating and cooling system can inhibit corrosion of the metal on the water side. Hydroquinone is used as a deoxidizer for boiler water, and hydroquinone is added to it when the boiler water is preheated and deoxygenated to remove residual dissolved oxygen.