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Factory wholesale 1-BOC PIPERAZINE (TERT-BUTYL 1-PIPERAZINE CARBOXYLATE) - Crotonic Acid – Freemen
Appearance Colorless to beige cystalline product Purity (GC) 99.0%min Water 0.2%max Iron 3ppm max Other single heavey metals 1ppm max 100kg/Fiber drum, 16Mt/FCL UN No.2823, Class:8, Packing group:III ☑ It used across industry, personal care industry, resin industry as additive, Flavor & fragrance industry. ☑ In pharmaceutical industry, It is used for synthesis of (R)-3-Aminobutanol for anti-HIV API Dolutegravir and intermediates for other API, such as Crot... -
Good quality 2-Isopropylthioxanthone - N,N’-Methanediylidenebis(2,6-diisopropylaniline) (CDI) – Freemen
Appearance: white Powder Purity(HPLC): 98.0%min Particle size: <15um:90min 25kg/ drum, 8mt/FCL UN No.2811, Class:6.1, Packing group: III ☑ Polyester, polyamide, EVA and polyurethane, Soluble in organic solvents ☑ It is an effective additive to prevent polymer degradation due to an exposure to humidity and acids.it helps maintain the molar mass and, thus, mechanical properties as well as melt strength of our bio-based polyester in spite of detrimental processing ste... -
2021 Good Quality API intermediates - Fluoro-aceticacimethylester – Freemen
☑200kg/ drum, 16mt/FCL or ISO tank ☑UN No.2929, Class:6.1, Packing group:I ☑ Methyl fluoroacetate is a highly toxic chemical, which can stimulate eyes, respiratory system and skin, and it is dangerous to contact with the accident. FLUOROACETIC acid is flammable and can produce hydrogen fluoride gas, a toxic chemical, when burned. The toxicity of methyl fluoroacetate is that it hydrolyzes to form FLUOROACETIC acid, which combines with the coenzyme A of cell mitochondria to form fluoroacetyl CO... -
Factory Price For CAS 865-47-4 - 1,4,7,10-tetraazacyclododecane – Freemen
Appearance: White to almost white crystalline, hygroscopic Purity (Titration): 99.0%min Water: 1.0%max Toluene: 0.2%max unknown impurity: 0.05%max Total impurity: 0.2%max PH value:11-12.5 25kg/drum, 9Mt/FCL Non-hazardous material ☑ It used in pharmaceuticals. ☑ Cyclen and its derivatives exhibit selective coordination properties for transition metal cations, heavy metal cations, lanthanide and actinide ions, and even for organic or inorganic anions. The accurate behavior of cyclen and... -
2021 Good Quality CMO/CRMO - Photochromic Material – Freemen
Photochromic Material Photochromic materials are transparent materials which exhibit increased light absorption when they are exposed to light. They can be optical glasses or plastic materials. The photochromic properties usually result from the addition of a photochromic substance to a transparent material. Typically, such materials are used in sunglasses which automatically adapt to the light conditions: they transmit most light if it is not too bright, but get increasingly dark when expose... -
OEM/ODM Factory CAS 294-90-6 - 1,4,7,10-tetraazacyclododecane – Freemen
Appearance: White to almost white crystalline, hygroscopic Purity (Titration): 99.0%min Water: 1.0%max Toluene: 0.2%max unknown impurity: 0.05%max Total impurity: 0.2%max PH value:11-12.5 25kg/drum, 9Mt/FCL Non-hazardous material ☑ It used in pharmaceuticals. ☑ Cyclen and its derivatives exhibit selective coordination properties for transition metal cations, heavy metal cations, lanthanide and actinide ions, and even for organic or inorganic anions. The accurate behavior of cyclen and... -
2021 High quality 2-Ethylaniline - Lithium bis(trifluoromethanesulphonyl)imide (Li-TFSI) – Freemen
Apperance White or off-white Color(10w/w% aqueous solution) ≤100 Hazen Lithium bis(trifluoromethylsulfonyl)imide(100-sum of impurities, w/w%) ≤ 99.5% Water Content(KF,w/w%) ≤ 1000ppm pH value(Aqueous solution at 10w/w% of Litfsi at room temperature) 6.0 to 9.0 Turbidity(25% in dimethoxyethane) ≤10 NTU Chloride(Ionic Chromatography) ≤15ppm Fluoride(Ionometry) ≤20ppm Sum of fluoride and chloride ions(Ionic Chromatography) ≤35ppm Sulphate(Ionic Chromatography) ≤20ppm Sodium(Na,AAS) ≤10ppm Potass... -
Fast delivery Ethylhexyl Salicylate - 1,2-Dimethylimidazole – Freemen
☑ Catalyst in polyurethane, applied in polyurethane rigid foam and elastomer to extend the pot life, fasten the reaction and increase the final cross-lin density. ☑It can be used as curing agent of epoxy resin, improve the mechanical properties of products such as bending, stretching and compression, improve the electrical properties of insulation and chemical resistance. It is widely used in computers and electrical appliances; it is used in printed circuit boards and integrated circuits as ... -
Bottom price 2,2-Dimethoxy-2-phenylacetophenone - Photochromic Material – Freemen
Photochromic Material Photochromic materials are transparent materials which exhibit increased light absorption when they are exposed to light. They can be optical glasses or plastic materials. The photochromic properties usually result from the addition of a photochromic substance to a transparent material. Typically, such materials are used in sunglasses which automatically adapt to the light conditions: they transmit most light if it is not too bright, but get increasingly dark when expose... -
Factory wholesale Chemical Reagent - 2-Ethylaniline – Freemen
Appearance light yellow liquid Purity (GC) 99.0%min Water 0.2%ma ☑ It used across industry, agrochemical Active ingriedient synthesis, dyes and pharmaceuticals. ☑After the N-alkylation reaction between o-ethylaniline and 2-bromopropane, chlorfenapyr can be obtained. This is a pre-emergence selective herbicide with good effect on grass weeds and some broad-leaved weeds. ☑O-Ethylaniline is also the raw material of methamchlor and the insecticide ethyl methamidine. ☑In the dye... -
Professional China 1,2-Dimethylimidazole - Fluoro-aceticacimethylester – Freemen
☑200kg/ drum, 16mt/FCL or ISO tank ☑UN No.2929, Class:6.1, Packing group:I ☑ Methyl fluoroacetate is a highly toxic chemical, which can stimulate eyes, respiratory system and skin, and it is dangerous to contact with the accident. FLUOROACETIC acid is flammable and can produce hydrogen fluoride gas, a toxic chemical, when burned. The toxicity of methyl fluoroacetate is that it hydrolyzes to form FLUOROACETIC acid, which combines with the coenzyme A of cell mitochondria to form fluoroacetyl CO... -
Good Quality (R)-3-Aminobutanol - 2-Ethylaniline – Freemen
Appearance light yellow liquid Purity (GC) 99.0%min Water 0.2%ma ☑ It used across industry, agrochemical Active ingriedient synthesis, dyes and pharmaceuticals. ☑After the N-alkylation reaction between o-ethylaniline and 2-bromopropane, chlorfenapyr can be obtained. This is a pre-emergence selective herbicide with good effect on grass weeds and some broad-leaved weeds. ☑O-Ethylaniline is also the raw material of methamchlor and the insecticide ethyl methamidine. ☑In the dye...
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