Skype

Sumitomo Chemical/Technical Sourcing International Group


Web: http://www.sumitomo-chem.co.jp
Address: 1012, BeijingFortuneBldg, 5 DongSanHuanBeiLu, Beijing, Liaoning 100004, China
Phone: +86-(10)-65908541 | Fax: +86-(10)-65908540 | Map/Directions >>

Profile: Sumitomo Chemical/Technical Sourcing International Group specializes in producing inorganic & organic industrial chemicals, polymethyl methacrylate resin & aluminum. Our products include nitric acid, ammonium nitrate, liquid ammonia, caustic soda, aniline, methanol and formalin. We also deal with pigments, dyestuffs, polymer additives & fluorescent brightners.

1 to 50 of 114 Products/Chemicals (Click for related suppliers)  Page: [1] 2 3 >> Next 50 Results
• Acetaldehyde
IUPAC Name: acetaldehyde | CAS Registry Number: 75-07-0
Synonyms: acetaldehyde, ethanal, acetic aldehyde, ethyl aldehyde, Acetylaldehyde, aldehyde, Acetic ethanol, Acetaldehyd, acetaldehydes, ethaldehyde, Ethylaldehyde, Acetaldeyde, Aceteldehyde, Azetaldehyd, Aldeide acetica, Octowy aldehyd, Aldehyde acetique, Acetaldehyde (natural), Acetaldehyd [German], Acetaldehyde solution

Molecular Formula: C2H4OMolecular Weight: 44.052560 [g/mol]
H-Bond Donor: 0H-Bond Acceptor: 1

InChIKey: IKHGUXGNUITLKF-UHFFFAOYSA-N

• Acid Dyes
IUPAC Name: sodium;4-[[4-(diethylamino)phenyl]-(4-diethylazaniumylidenecyclohexa-2,5-dien-1-ylidene)methyl]benzene-1,3-disulfonate

Molecular Formula: C27H31N2NaO6S2Molecular Weight: 566.663 [g/mol]
H-Bond Donor: 0H-Bond Acceptor: 7

InChIKey: SJEYSFABYSGQBG-UHFFFAOYSA-M

• Acid Mordant Dyes
• Acrylic Acid
IUPAC Name: prop-2-enoic acid | CAS Registry Number: 79-10-7
Synonyms: ACRYLIC ACID, 2-Propenoic acid, Vinylformic acid, Propenoic acid, Acroleic acid, Propene acid, Propenoate, Carbomer, Phytogel base, enoate, enoates, Synthalen K, Synthalen L, Polyacrylate, ACRYLATE, Carbopol, Carpolene, Texcryl, Arolon, Racryl

Molecular Formula: C3H4O2Molecular Weight: 72.062660 [g/mol]
H-Bond Donor: 1H-Bond Acceptor: 2

InChIKey: NIXOWILDQLNWCW-UHFFFAOYSA-N

• Acrylonitrile
IUPAC Name: prop-2-enenitrile | CAS Registry Number: 107-13-1
Synonyms: ACRYLONITRILE, 2-Propenenitrile, Vinyl cyanide, Propenenitrile, Cyanoethylene, Carbacryl, Fumigrain, Acritet, Acrylon, Ventox, Propenitrile, Propenonitrile, Acrylnitril, Miller's fumigrain, Polyacrylonitrile, Acrylonitrile monomer, Acrylofume, Akrylonitryl, Nitrile acrylique, Cyanure de vinyle

Molecular Formula: C3H3NMolecular Weight: 53.062620 [g/mol]
H-Bond Donor: 0H-Bond Acceptor: 1

InChIKey: NLHHRLWOUZZQLW-UHFFFAOYSA-N

• Activated Alumina
IUPAC Name: oxo(oxoalumanyloxy)alumane | CAS Registry Number: 1344-28-1
Synonyms: Alumina, Corundum, Sapphire, Bauxite, Electrocorundum, Florite, Porocel, Korund, Emery, alpha-Corundum, Fasertonerde, Abramant, Compalox, Faserton, Martoxin, Poraminar, Porocel O, Abramax, Abrarex, Abrasit

Molecular Formula: Al2O3Molecular Weight: 101.961276 [g/mol]
H-Bond Donor: 0H-Bond Acceptor: 3

InChIKey: TWNQGVIAIRXVLR-UHFFFAOYSA-N

• Additives for Plastics and Oil
• Agrochemicals
IUPAC Name: benzoic acid;(1'R,2S,4'R,6S,8'R,20'S,24'S)-2-butan-2-yl-21',24'-dihydroxy-12'-[(2R,5R)-4-methoxy-5-[4-methoxy-6-methyl-5-(methylamino)oxan-2-yl]oxy-6-methyloxan-2-yl]oxy-3,11',13',22'-tetramethylspiro[2,3-dihydropyran-6,6'-3,7,19-trioxatetracyclo[15.6.1.14,8.020,24]pentacosa-10,14,16,22-tetraene]-2'-one

Molecular Formula: C56H81NO15Molecular Weight: 1008.256 [g/mol]
H-Bond Donor: 4H-Bond Acceptor: 16

InChIKey: GCKZANITAMOIAR-MFYGLRNKSA-N

• Alkyl-Benzene
• Allethrin
IUPAC Name: (2-methyl-4-oxo-3-prop-2-enylcyclopent-2-en-1-yl) 2,2-dimethyl-3-(2-methylprop-1-enyl)cyclopropane-1-carboxylate | CAS Registry Number: 584-79-2
Synonyms: Bioallethrin, Pallethrine, ALLETHRIN, Allethrine, Pyrethrin, Pynamin, Pyresin, Pyresyn, trans-Allethrin, Esdepallethrine, D-Allethrin, Depallethrin, Esbioallethrin, Esbiothrin, Allyl cinerin I, Exthrin, Esbiol, Necarboxylic acid, Matox, Allethrin coil

Molecular Formula: C19H26O3Molecular Weight: 302.407940 [g/mol]
H-Bond Donor: 0H-Bond Acceptor: 3

InChIKey: ZCVAOQKBXKSDMS-UHFFFAOYSA-N

• Alumina Hydrate
IUPAC Name: aluminum trihydrate | CAS Registry Number: 21645-51-2
Synonyms: Alhydrogel, Dialume, Calmogastrin, Tricreamalate, Alugelibye, Alumigel, Amphogel, Amphojel, Ascriptin, Boehmite, Calcitrel, Higilite, Hydrafil, Liquigel, Martinal, Trisogel, Aluminium hydroxide, Camalox, Gelusil, Mylanta

Molecular Formula: AlH6O3Molecular Weight: 81.027378 [g/mol]
H-Bond Donor: 3H-Bond Acceptor: 3

InChIKey: MXRIRQGCELJRSN-UHFFFAOYSA-N

• Alumina Methanol
IUPAC Name: aluminum;hydrate

Molecular Formula: AlH2OMolecular Weight: 44.997 [g/mol]
H-Bond Donor: 1H-Bond Acceptor: 1

InChIKey: MHCAFGMQMCSRGH-UHFFFAOYSA-N

• Aluminum Sulphate
IUPAC Name: aluminum potassium disulfate | CAS Registry Number: 10043-01-3
Synonyms: Alaun, Exsiccated alum, Alum, Alum potassium, Potassium alum, Potash alum, Burnt alum, Burnt potassium alum, ALUM, POTASSIUM, Aluminum potassium alum, Potassium aluminum alum, Aluminum potassium sulfate, Tai-Ace K 20, Alum, N.F, Alum, potassium anhydrous, Tai-Ace K 150, Potassium aluminum sulfate, Alum, N.F., Aluminum potassium disulfate, Dialuminum dipotassium sulfate

Molecular Formula: AlKO8S2Molecular Weight: 258.205038 [g/mol]
H-Bond Donor: 0H-Bond Acceptor: 8

InChIKey: GRLPQNLYRHEGIJ-UHFFFAOYSA-J

• Ammonia
IUPAC Name: azane | CAS Registry Number: 7664-41-7
Synonyms: ammonia, Ammonia gas, Ammoniakgas, Ammonia anhydrous, Spirit of hartshorn, Liquid Ammonia, ammoniac, amoniaco, azane, Nitro-sil, Ammonia, anhydrous, Ammoniak, Anhydrous ammonia, Nitrogen, tertiary amines, primary amines, Secondary amine, tertiaeres Amin, primaeres Amin, Tertiary amine

Molecular Formula: H3NMolecular Weight: 17.030520 [g/mol]
H-Bond Donor: 1H-Bond Acceptor: 1

InChIKey: QGZKDVFQNNGYKY-UHFFFAOYSA-N

• Ammoniater Superphosphate
• Ammonium Diacid Phosphate
IUPAC Name: azane; phosphoric acid | CAS Registry Number: 7722-76-1
Synonyms: Amfos, ammonium phosphate, Fyrex, Taikarin F, Taikarin FN, Ammonium biphosphate, Ammonium orthophosphate, Ammonium acid phosphate, Ammonium dihydrophosphate, Ammonium diacid phosphate, Primary ammonium phosphate, Monoammonium orthophosphate, Monoammonium acid phosphate, Ammonium monobasic phosphate, Monobasic ammonium phosphate, Ammonium dihydrogen phosphate, Dihydrogen ammonium phosphate, MONOAMMONIUM PHOSPHATE, FR-CROS 282, Monoammonium hydrogen phosphate

Molecular Formula: H6NO4PMolecular Weight: 115.025701 [g/mol]
H-Bond Donor: 4H-Bond Acceptor: 5

InChIKey: LFVGISIMTYGQHF-UHFFFAOYSA-N

• Ammonium Nitrate
IUPAC Name: azanium nitrate | CAS Registry Number: 6484-52-2
Synonyms: Nitram, Herco prills, German saltpeter, Norway saltpeter, Merco Prills, Varioform I, Ammonium nitricum, Ammonium saltpeter, Nitrate of ammonia, AMMONIUM NITRATE, Nitric acid ammonium salt, Caswell No. 045, Ammonium nitrate solution, Ammonium nitrate, solution, Nitrato amonico [Spanish], Nitric acid, ammonium salt, Ammonium hydrogendinitrate, Nitrate d'ammonium [French], Ammonium(I) nitrate (1:1), HSDB 475

Molecular Formula: H4N2O3Molecular Weight: 80.043360 [g/mol]
H-Bond Donor: 1H-Bond Acceptor: 3

InChIKey: DVARTQFDIMZBAA-UHFFFAOYSA-O

• Anhydrous Caustic Soda
IUPAC Name: sodium;hydroxide | CAS Registry Number: 1310-73-2
Synonyms: SODIUM HYDROXIDE, Caustic soda, Sodium hydrate, Soda lye, White caustic, Sodium hydroxide (Na(OH)), Aetznatron, Ascarite, Sodium hydroxide solution, Soda, caustic, Natriumhydroxid, Rohrputz, Plung, Collo-Grillrein, Liquid-plumr, Caustic soda solution, Collo-Tapetta, Fuers Rohr, Rohrreiniger Rofix, NaOH

Molecular Formula: HNaOMolecular Weight: 39.997 [g/mol]
H-Bond Donor: 1H-Bond Acceptor: 1

InChIKey: HEMHJVSKTPXQMS-UHFFFAOYSA-M

• Anolone
• Antioxidant BHT
IUPAC Name: 2,6-ditert-butyl-4-methylphenol | CAS Registry Number: 128-37-0
Synonyms: Butylated hydroxytoluene, Butylhydroxytoluene, Dibunol, Ionol, Impruvol, Topanol, Dalpac, Deenax, Ionole, Stavox, Vianol, Antioxidant KB, Kerabit, Sustane, Tonarol, Agidol, Antioxidant 4K, Sumilizer BHT, Topanol O, Topanol OC

Molecular Formula: C15H24OMolecular Weight: 220.350460 [g/mol]
H-Bond Donor: 1H-Bond Acceptor: 1

InChIKey: NLZUEZXRPGMBCV-UHFFFAOYSA-N

• Aromatic Chemicals (Including Allyl Caproate, Ethyl Caproate, Geranyl Caproate, Iso Amyl Caproate)
• Basic Dyes
• Battery Acid
IUPAC Name: sulfuric acid | CAS Registry Number: 7664-93-9
Synonyms: SULFURIC ACID, Sulphuric acid, Schwefelsaeure, Mattling acid, Battery acid, Dipping acid, Electrolyte acid, Hydrogen sulfate, sulfate, Oil of vitreol, Oil of vitriol, Acidum sulfuricum, Dihydrogen sulfate, Vitriol Brown Oil, Sulfuric acid, spent, Methanolic H2SO4, Caswell No. 815, tetraoxosulfuric acid, OLEUM, Sulfuric acid (NF)

Molecular Formula: H2O4SMolecular Weight: 98.078480 [g/mol]
H-Bond Donor: 2H-Bond Acceptor: 4

InChIKey: QAOWNCQODCNURD-UHFFFAOYSA-N

• Benzene
IUPAC Name: benzene | CAS Registry Number: 71-43-2
Synonyms: benzene, benzol, benzole, Cyclohexatriene, Benzine, Phenyl hydride, Naphtha, Pyrobenzole, Benzolene, Petroleum, Pyrobenzol, Ligroine, Benzin, Mineral naphtha, Coal naphtha, Motor benzol, Carbon oil, Petroleum benzin, Polystream, Asphaltum

Molecular Formula: C6H6Molecular Weight: 78.111840 [g/mol]
H-Bond Donor: 0H-Bond Acceptor: 0

InChIKey: UHOVQNZJYSORNB-UHFFFAOYSA-N

• Beta Chlorine
IUPAC Name: molecular chlorine | CAS Registry Number: 7782-50-5
Synonyms: CHLORINE, dichlorine, Bertholite, Chlorine gas, Molecular chlorine, Chlore [French], Cloro [Italian], Chlorine mol, Chloor [Dutch], Chlor [German], Chlorine mol., Chlorinated water, Caswell No. 179, Bertholite /warfare gas/, Chlorinated water (chlorine), CCRIS 2280, HSDB 206, 295132_ALDRICH, CHEBI:29310, EINECS 231-959-5

Molecular Formula: Cl2Molecular Weight: 70.906000 [g/mol]
H-Bond Donor: 0H-Bond Acceptor: 0

InChIKey: KZBUYRJDOAKODT-UHFFFAOYSA-N

• Butadiene
IUPAC Name: buta-1,3-diene | CAS Registry Number: 106-99-0
Synonyms: Divinyl, Vinylethylene, 1,3-BUTADIENE, Bivinyl, Biethylene, Erythrene, Buta-1,3-diene, Pyrrolylene, Butadiene monomer, vinyl ethylene, BUTADIENE, alpha,gamma-Butadiene, Butadieen [Dutch], Butadien [Polish], Polybutadiene, cis, 1,3-butadien, 1,4-Polybutadiene, alpha-gamma-butadiene, POLYBUTADIENE, Buta-1,3-dien

Molecular Formula: C4H6Molecular Weight: 54.090440 [g/mol]
H-Bond Donor: 0H-Bond Acceptor: 0

InChIKey: KAKZBPTYRLMSJV-UHFFFAOYSA-N

• Butene
IUPAC Name: but-1-ene | CAS Registry Number: 25167-67-3
Synonyms: Ethylethylene, alpha-Butylene, alpha-Butene, Butylene, But-1-ene, 1-BUTENE, 1-Butylene, n-Butylene, n-Butene, Polybutene, .alpha.-Butene, BUTENE, 1-n-Butene, Actipol E6, Butene-1, Butene, 1-, Poly-alpha-butylene, 1-Butene, homopolymer, Butene, polymer-bound, CCRIS 8970

Molecular Formula: C4H8Molecular Weight: 56.106320 [g/mol]
H-Bond Donor: 0H-Bond Acceptor: 0

InChIKey: VXNZUUAINFGPBY-UHFFFAOYSA-N

• Caprolactam
IUPAC Name: azepan-2-one | CAS Registry Number: 105-60-2
Synonyms: epsilon-Caprolactam, 6-Caprolactam, Hexanolactam, 6-Hexanelactam, Aminocaproic lactam, Hexanone isoxime, CAPROLACTAM, hexannic acid, 2-Oxohexamethylenimine, 2-Azacycloheptanone, 2-Perhydroazepinone, azepan-2-one, Kapromine, Stilon, 1,6-Hexolactam, E-caprolactum, Hexahydro-2-azepinone, Caprolactam monomer, gamma-caprolactam, omega-caprolactum

Molecular Formula: C6H11NOMolecular Weight: 113.157640 [g/mol]
H-Bond Donor: 1H-Bond Acceptor: 1

InChIKey: JBKVHLHDHHXQEQ-UHFFFAOYSA-N

• Carbamide
IUPAC Name: urea | CAS Registry Number: 57-13-6
Synonyms: urea, carbamide, Carbonyldiamide, Isourea, Ureophil, Carbonyldiamine, Carbamimidic acid, Pseudourea, Ureaphil, Urevert, Alphadrate, Aquadrate, Calmurid, Carbaderm, Keratinamin, Carbonyl diamide, Pastaron, Urepearl, Carbamide resin, Ultra Mide

Molecular Formula: CH4N2OMolecular Weight: 60.056 [g/mol]
H-Bond Donor: 2H-Bond Acceptor: 1

InChIKey: XSQUKJJJFZCRTK-UHFFFAOYSA-N

• Catalysts for Olefine Polymerization
• Cationic Dyes
• Compound Fertilisers
• Concentrated Nitric Acid
IUPAC Name: nitric acid | CAS Registry Number: 7697-37-2
Synonyms: NITRIC ACID, Salpetersaeure, Azotic acid, nitrate, Hydrogen nitrate, Nital, Acidum nitricum, Gallium nitrate, Nitrous fumes, Aqua fortis, Nitryl hydroxide, Engraver's acid, acide azotique, Terbium nitrate, Acide nitrique, trioxonitric acid, Acid, Nitric, Gallium trinitrate, Terbium trinitrate, RFNA

Molecular Formula: HNO3Molecular Weight: 63.012840 [g/mol]
H-Bond Donor: 1H-Bond Acceptor: 3

InChIKey: GRYLNZFGIOXLOG-UHFFFAOYSA-N

• Cyanophos
IUPAC Name: 4-dimethoxyphosphinothioyloxybenzonitrile | CAS Registry Number: 2636-26-2
Synonyms: Ciafos, Cyanox, Cynock, CYANOPHOS, CYAP, Sumitomo S 4084, Caswell No. 268A, Cyanophos [BSI:ISO], Bayer 34727, May & baker S-4084, PS2034_SUPELCO, HSDB 6427, OMS 226, OMS 869, 46279_RIEDEL, CHEBI:38621, EINECS 220-130-3, BAY 34727, ENT 25,675, EPA Pesticide Chemical Code 268200

Molecular Formula: C9H10NO3PSMolecular Weight: 243.219361 [g/mol]
H-Bond Donor: 0H-Bond Acceptor: 4

InChIKey: SCKHCCSZFPSHGR-UHFFFAOYSA-N

• D-Cis-Trans Allethrin
IUPAC Name: (2-methyl-4-oxo-3-prop-2-enylcyclopent-2-en-1-yl) 2,2-dimethyl-3-(2-methylprop-1-enyl)cyclopropane-1-carboxylate | CAS Registry Number: 42534-61-2
Synonyms: Bioallethrin, Pallethrine, ALLETHRIN, Allethrine, Pyrethrin, Pynamin, Pyresin, Pyresyn, trans-Allethrin, Esdepallethrine, D-Allethrin, Depallethrin, Esbioallethrin, Esbiothrin, Allyl cinerin I, Exthrin, Esbiol, Necarboxylic acid, Matox, Allethrin coil

Molecular Formula: C19H26O3Molecular Weight: 302.407940 [g/mol]
H-Bond Donor: 0H-Bond Acceptor: 3

InChIKey: ZCVAOQKBXKSDMS-UHFFFAOYSA-N

• Dimethoate
IUPAC Name: 2-dimethoxyphosphinothioylsulfanyl-N-methylacetamide | CAS Registry Number: 60-51-5
Synonyms: dimethoate, Phosphamide, Rogor, Aadimethoal, Cekuthoate, Dimethogen, Ferkethion, Perfecthion, Perfekthion, Phosphamid, Dimetate, Fosfamid, Fosfotox, Rebelate, Sinoratox, Sistemin, Systemin, Systoate, Trimetion, Daphene

Molecular Formula: C5H12NO3PS2Molecular Weight: 229.257441 [g/mol]
H-Bond Donor: 1H-Bond Acceptor: 3

InChIKey: MCWXGJITAZMZEV-UHFFFAOYSA-N

• Dimethyl Benzene
IUPAC Name: 1,3-dimethylbenzene | CAS Registry Number: 1330-20-7
Synonyms: M-XYLENE, m-Xylol, m-Dimethylbenzene, 1,3-Dimethylbenzene, m-Methyltoluene, meta-Xylene, 1,3-Xylene, 3-Xylene, Dimethylbenzene, Benzene, 1,3-dimethyl-, Xylol, m-Xylenes, Xylene, m-, Santosol 150, Xylene, m-isomer, m-Xylene, benzylated, Benzene, dimethyl-, Benzene, m-dimethyl-, 1,3-Dimethylbenzol, XYLENES

Molecular Formula: C8H10Molecular Weight: 106.165000 [g/mol]
H-Bond Donor: 0H-Bond Acceptor: 0

InChIKey: IVSZLXZYQVIEFR-UHFFFAOYSA-N

• Direct Dyes
• Discharging Agents
• Disperse Dyes
• DL-Methionine
IUPAC Name: 2-amino-4-methylsulfanylbutanoic acid | CAS Registry Number: 59-51-8
Synonyms: methionine, Racemethionine, D-Methionine, L-methionine, Acimetion, Pedameth, Banthionine, Methilanin, Lobamine, Mertionin, Cynaron, Meonine, Metione, Urimeth, DL-METHIONINE, Dyprin, Neston, DL-Methioninum, metionina, Methilonin

Molecular Formula: C5H11NO2SMolecular Weight: 149.211340 [g/mol]
H-Bond Donor: 2H-Bond Acceptor: 3

InChIKey: FFEARJCKVFRZRR-UHFFFAOYSA-N

• Dyes and Dyestuff Intermediates
• Dyestuffs
• Elastomers
IUPAC Name: 2-methylbuta-1,3-diene | CAS Registry Number: 9006-04-6
Synonyms: ISOPRENE, 2-Methyl-1,3-butadiene, 78-79-5, Isopentadiene, 2-Methylbutadiene, 2-Methylbuta-1,3-diene, 1,3-Butadiene, 2-methyl-, 2-Methyldivinyl, beta-Methylbivinyl, isopreno, isoterpene, Isopren, 3-Methyl-1,3-butadiene, CH2=C(CH3)CH=CH2, NSC 9237, UNII-0A62964IBU, .beta.-Methylbivinyl, CCRIS 6253, HSDB 620, EINECS 201-143-3

Molecular Formula: C5H8Molecular Weight: 68.119 [g/mol]
H-Bond Donor: 0H-Bond Acceptor: 0

InChIKey: RRHGJUQNOFWUDK-UHFFFAOYSA-N

• Electrical Materials
• Engineering Plastics
• Epoxy Resin
IUPAC Name: 2-(chloromethyl)oxirane; 4-[2-(4-hydroxyphenyl)propan-2-yl]phenol | CAS Registry Number: 25068-38-6
Synonyms: Genepoxide, Epidian, Epiterm, Epiterm W, Casting Resin F, Bakelite PAHJ, Bakelite PKDA, Bakelite PKHH, Araldite 527, Phenoxy PKHH, Epidian 1, Epidian 2, Epidian 3, Epidian 4, Epidian 5, Epiterm 1, Araldite GY 250, Beckopox EP 301, Beckopox EP 304, Araldit LY 556

Molecular Formula: C18H21ClO3Molecular Weight: 320.810540 [g/mol]
H-Bond Donor: 2H-Bond Acceptor: 3

InChIKey: KUBDPQJOLOUJRM-UHFFFAOYSA-N

• Ethylene
IUPAC Name: ethene | CAS Registry Number: 74-85-1
Synonyms: Ethene, ETHYLENE, Elayl, Olefiant gas, Acetene, Etileno, Liquid ethylene, Polyethylene as, Ethylene, pure, Plastipore, Aethylen, Alkathene, Ambythene, Athylen, Etherin, Aethen, Hizex, Grex, Athylen [German], Ethylene polymer

Molecular Formula: C2H4Molecular Weight: 28.053160 [g/mol]
H-Bond Donor: 0H-Bond Acceptor: 0

InChIKey: VGGSQFUCUMXWEO-UHFFFAOYSA-N

• Ethylene Copolymers
• Ethylene Propylene Rubbers (CAS: 61789-00-2)

 Edit or Enhance this Company (3005 potential buyers viewed listing,  609 forwarded to manufacturer's website)
Alphabetical Products   |   ALL 20,000 Suppliers
HomeBuyAdd FREE ListingAdvertise Chemical Company