2-Methyl-4-Isothiazolin-3-one-Shandong Huashang Chemical Co., Ltd.

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2-Methyl-4-Isothiazolin-3-one

Brand：HS

Model：25kg/drum

Purity：99%

Cas：2682-20-4

Createtime： 2026-04-14
Updatetime： 2026-04-15

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Product Details

useage	Industrial use
deliveryInfo
appearance	liquid
Molecular Weight	115.15
aliasen
supplyCapacity	50000MT/Month
harbor	Qingdao,China
minorder	1KG
Appearance	Colorless to pale yellow clear liquid

Shandong Huashang Chemical Co., Ltd. is a high-tech enterprise specializing in the research and development, manufacturing, and sales of fine chemicals. Headquartered in Jinan, Shandong, China, we are committed to delivering high-quality products to our global partners. Currently, over 90% of our products are exported to developed markets, including North America, Europe, Japan, South Korea, and the Middle East.

Basic Information

Product Name: 2-Methyl-4-Isothiazolin-3-one

Alias: MIT; Methylisothiazolinone; 2-Methylisothiazol-3(2H)-one; KATHON CG; Skycide 100;

CAS No.: 2682-20-4

EINECS No.: 220-239-6

Molecular Formula: C?H?NOS

Molecular Weight: 115.15 g/mol

Classification: Isothiazolinone compound, biocide, preservative, fine chemical, cosmetic ingredient, industrial bactericide

Physical & Chemical Properties

Appearance: Colorless to pale yellow clear liquid (10% aqueous solution) or yellow solid; with mild odor

Density: 1.25 g/cm3 (14% aqueous solution); 1.10-1.30 g/cm3 (50% grade, 20℃)

Melting Point: 254-256℃ (lit.)

Boiling Point: 93℃ (0.03 kPa)

Solubility: Completely soluble in water (489 g/L at 20℃); mostly soluble in acetonitrile, methanol, hexane and chloroform; slightly soluble in xylene and ethyl acetate

Purity: ≥98.0% (analytical standard, GCF); 10%, 50% aqueous solution available

Storage Condition: 2-8℃, sealed, cool and dry place, protect from light; avoid high temperature, moisture and direct sunlight; keep container tightly closed, away from oxidants and incompatible substances

Main Uses

Cosmetic & Personal Care Field: Used as a high-efficiency broad-spectrum preservative, added to shampoos, lotions, creams, sunscreens, baby products and cleaning products to inhibit the growth of bacteria, fungi and algae; the maximum allowable concentration in cosmetics is 0.01% in line with national and international standards
Industrial Field: Used as a bactericide and preservative in industrial circulating water, oilfield reinjection water, papermaking, coatings, paints, leather and ink industries; it has a strong killing and inhibiting effect on slime bacteria and sulfate-reducing bacteria, and has good compatibility with surfactants
Research & Other Fields: Used as an analytical standard and biochemical reagent for HPLC and GC detection; applied in laboratory research on antimicrobial mechanisms and the development of preservative products; also used in wallpaper adhesives and non-formalin products

Specification Table

Item	Specification	Unit	Remarks
Product Name	2-Methyl-4-Isothiazolin-3-one	—
CAS Number	2682-20-4	—
Molecular Formula	C?H?NOS	—
Molecular Weight	115.15	g/mol
Appearance	Colorless to pale yellow clear liquid	—	10% aqueous solution
Purity	≥98.0	%	GCF, analytical standard
Melting Point	254-256	℃	lit. = literature value