FLAG CHEMICAL INDUSTRY CO.,LTD
Products Contact US
Oxybenzone CAS 131-57-7

CAS : 131-57-7
Molecular formula: C14H12O3
Molecular weight: 228.24
EINECS number: 205-031-5
PRODUCT DETAILS
Chemical properties:
light yellow crystalline powder, soluble in ethanol, acetone and other organic solvents, insoluble in water.
Solubility: Soluble in acetone, benzene, methanol, ethyl acetate, methyl ethyl ketone and ethanol and other most organic solvents, insoluble in water.
Physical and chemical properties:
| Appearance | Light yellow powder |
| Transmittance | 460nm: ≥ 92%
500nm: ≥ 95% |
| Volatile matter | ≤ 0.2% |
| Ash content | ≤ 0.1% |
| Melting point | 62-64 ° C |
| Content | ≥ 99% |
Applications:
It is a broad spectrum ultraviolet absorber with high absorption rate, non-toxic, non-teratogenic effect, and good stability to light and heat.
Used in plastic, chemical fiber, paint and petroleum products, especially suitable for light and transparent products.
Can be used for paint and a variety of plastic products, polyvinyl chloride, polyester, acrylic, resin, polystyrene and light-colored transparent furniture, especially effective, is a good cosmetic addition.
This product almost does not absorb visible light, so it is suitable for light-colored transparent products. It can effectively absorb 290-400nm ultraviolet light, and does not absorb visible light. It provides them with good light stabilization effect. Dosage 0.1-0.5%
Packing:
Cardboard drum lined with plastic bag, net weight 25kg.
Storage:
Store in a cool place. Keep containers tightly closed and store in a dry, ventilated place
POLYETHYLENE CAS 9002-88-4 Customized

CAS:9002-88-4
, Molecular formula: (C2H4)n
, Molecular weight:28.05316
PRODUCT DETAILS
Appearance: low molecular weight colorless liquid, high molecular weight colorless milky white waxy particles or powder
Chemical Properties:
Low molecular weight ones are generally colorless, odorless, tasteless and non-toxic liquids. High molecular weight ones are milky white waxy solid powder in pure form. Low molecular weight is insoluble in water, slightly soluble in turpentine, petroleum ether, toluene and so on. High molecular weight is insoluble in known solvents at room temperature, but is soluble in aliphatic hydrocarbons, aromatic hydrocarbons and halogenated hydrocarbons on prolonged exposure. Slightly soluble in toluene, amyl acetate, etc. above 70°C
Use:
1. Polyethylene can be processed into film, wire and cable sheathing, tubing, a variety of hollow products, injection molded products, fibers, etc., widely used in agriculture, packaging, automotive and other industries.
2. PE can be used to produce high impact plastic profiles, rubber additives.
3. It can be used as packaging materials for industrial and agricultural products, food, crop seedling covering film, channel and reservoir seepage control film, etc.
4. Used in food industry as chewing aid for gummies.
5. Used to replace steel, also can be used as special film, large containers, large conduits, plates and sintering materials.
Packing:
25kg/bag or customized according to customers’ requirements
2,2- Dimethyl -1,3- propanedio

,2-Dimethyl-1,3-propanediol CAS:126-30-7
Molecular formula C5H12O2
Molecular weig15
EINECS number 204-781-0
PRODUCT DETAILS
Physicochemical properties of 2,2-Dimethyl-1,3-propanediol:
White crystalline solid, odorless, with hygroscopicity. Melting point 124~130 ℃, boiling point 210 ℃, density (21 ℃) 1.06g/cm ³, Flash point 129 ℃, natural point 399 ℃, sublimation temperature 210 ℃, easily soluble in water, lower alcohols, lower ketones, ethers, and aromatic compounds.
2,2-Dimethyl-1,3-propanediol Purpose:
It is mainly used to produce plasticizers, surfactants, insulating materials, printing inks, polymerization inhibitors, synthetic aviation lubricant oil additives, etc. of unsaturated resins, oil-free alkyd resins, polyurethane foam plastics and elastomers; Meanwhile, neopentyl glycol is also an excellent solvent that can be used for the selective separation of aromatic hydrocarbons and naphthenic hydrocarbons; Its amino baking paint has good light retention and does not turn yellow; It can also be used as a raw material for producing stabilizers and insecticides.
Main control indicators:
| Index name | First grade goods | Qualified product |
| 170% water solution chroma (platinum – cobalt color number) ≤ | 30 | 80 |
| Mass fraction content of neopentyl glycol /%≥ | 99.0 | 98.0 |
| Hydroxyl content /%≤ | 31.6 | 31.0 |
| Acid content (in acetic acid) /%≤ | 0.05 | 0.20 |
| Melting point range /% | 123~130 | 118~130 |
| Moisture /%≤ | 1.0 | 1.2 |
Packaging: Packed in bags, with plastic bags on the inner layer and woven bags on the outer layer. 25KG/bag, 500KG/bag.
Store in a cool and ventilated place, protected from sun, heat, and moisture. Store and transport according to general chemical regulations.
2,5- DIMETHOXY – BETA -NITROSTYRENE CAS 40276-11-7

CAS: 40276-11-7
MF: C10H11NO4
MW: 209.2
Purity: 98%
Appearance: Orange crystalline powder
RODUCT DETAILS
| AnalysisItem | Standard | Result |
| Appearance | Orange crystalline powder | Conforms |
| IR | Should be conform to the structure | Conforms |
| NMR Determination | Should be conform to the structure | Conforms |
| Loss On Drying | ≤2.0% | 0.18% |
| HPLC Purity at 210 nm | ≥98% | 98.66% |
Physicochemical properties:
Incandescent residue %: ≤0.10
Weight loss on drying %: ≤1
Density: 1.2±0.1 g/cm³
Boiling point: 350.8±27.0 °C at 760 mmHg
Melting point: 116-120ºC(lit.)
Flash point : 163.2±25.7 °C
Vapour pressure: 0.0±0.7 mmHg at 25°C
Refractive index : 1.565
Molecular structure : 1:
1. Molar refractive index: 56.88
2. Molar volume (cm³/mol): 174.6
3. Isotropic specific volume (90.2 K): 442.3
4. Surface tension (dyne/cm): 41.1
5. Polarisation rate: 22.55
Packing:
1kg/bag or 25kg/drum or as per customer’s requirement.
Storage:
This product should be stored in a cool, ventilated and dry warehouse. This product is irritating. Skin contact with its vapour or solution may cause Skin contact with its vapour or solution may cause dermatitis; eye contact may cause damage to the cornea.
Isothiazolinones CAS 26172-55-4

CAS 26172-55-4
Molecular formula C4H4ClNOS
Molecular weight 149.6
EINECS No. 247-500-7
PRODUCT DETAILS
Product Introduction:
Isothiazolinones is a monomer developed in response to the special needs of the market. It has a faster killing ability than CMIT/MIT blends, and its heavy metal and salt free characteristics make it suitable for some targeted special application fields.
Product Advantages:
Low dosage, quick effect.
Wide-spectrum and effective, with ideal killing effects on various microorganisms.
Free from stabilizers, heavy metals, and inorganic salts.
Easy to degrade, environmentally friendly and low toxic.
Quality parameters:
| Item | Quality parameter |
| Appearance | Colorless transparent liquid |
| smell | Faint smell |
| activity | 12% or higher |
| Specific gravity | 1.12 ~ 1.13 |
Application:
Used to treat industrial circulating water, it has a bactericidal and algal killing effect. It is a widely used bactericidal and preservative that can effectively kill algae, bacteria, and fungi. This active monomer can be widely used in industries such as industrial cooling water, oilfield return tank water, papermaking industry, pipelines, coatings, oil chemicalbook paint, rubber, cosmetics, photosensitive films, and washing products. Low effective dosage, non-toxic and pollution-free, easily mixed in various formulas, with a wide range of PH usage. After diluting the concentration, it is easily biodegradable into non-toxic and pollution-free substances.
Angiotensin converting enzyme inhibitor, Prodrug, used for hypertension.
Fungicides are widely used in industrial water treatment, swimming pool water treatment, etc.
Packaging:
25kg plastic bucket, 250kg plastic bucket, 1000kg IBC bucket or customer specified packaging.
Storage:
It should be stored in a ventilated and cool place, away from direct sunlight, with a shelf life of 12 months (20 ℃)
2- Imidazolidone 2- Imidazolidone 40% Solution CAS 120-93-4

CAS:120-93-4
Molecular formula: C3H6N2O
Appearance: white needle-like crystal or transparent liquid
Molecular weight: 86.09
Quality index: ≥99.0% or 40% can be customized according to customer needs to 30%, 50% or other concentration of aqueous solution.
RODUCT DETAILS
| Items | Specification | Results |
| Appearance | White crystalline powder | Confirms |
| Assay, % | ≥99.0 | 99.28 |
| Solubility | Easily soluble in water | Confirms |
| Melting point, °C | ≥129.0 | 131 |
| Loss on Drying, % | ≤0.50 | 0.35 |
Application:
1. All kinds of aldehyde removal field. It is used as a formaldehyde capture agent to remove the residual formaldehyde in the fabric after finishing with 2D- resin, KB resin, urea-formaldehyde ester, melamine formaldehyde resin, etc. The product is also used as an intermediate in fine chemicals for the manufacture of resins, plasticizers, paints, adhesives, etc.
2. In the pharmaceutical industry. It can be used as a variety of new antibiotic intermediates, can also be used as an intermediate for anti-schistosomiasis drugs, and can be used as the basic raw material of third-generation penicillin; For the synthesis of a highly water-soluble peptide based on human neutrophil elastase inhibitors.
3. In chemistry. For the synthesis of chiral microporous materials prepared from achiral precursors; It is used for the preparation of aryl and heteroaryl N-acylurea by microwave-assisted palladium-catalyzed carbonylation reaction; Formed by cyanoacetylation reaction for the synthesis of antibacterial heterocycles; It is used for Pd catalytic reaction with heteroaromatic tosylate to form C-N bonds; Oxidative amidation reaction for activating streptafens.
Packing:
Solid form Packing: 25kg/bag or 25kg/drum
Liquid form: 25kg/drum or 180kg/drum or customized according to customer requirements
Storage:
Keep away from tinder, heat sources. Sealed storage, put in a cool, dry environment to prevent moisture. Avoid co-existence with oxides.










Reviews
There are no reviews yet.