Company Profile
WS Simpson is a chemical company located at Unit 6B, Lodgeway, Severnbridge Industrial Estate, Caldicot, Monmouthshire, United Kingdom. The company manufactures and distributes a wide range of chemical products including solvents, acids and reagents.
Founded in the early 1900s, WS Simpson has grown to become a leading supplier of chemical products to a variety of industries including pharmaceuticals, food and beverages and cosmetics. The company has a team of experienced chemists and technicians dedicated to ensuring the quality and safety of its products.
WS Simpson's services include custom formulation, packaging and delivery. We are committed to providing our customers with the highest level of service and support.
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Product List
| Product Name | Synonyms | CAS No. | Grate/Content | Operate |
|---|---|---|---|---|
Auramine |
Benzenamine,4,4′-carbonimidoylbis[N,N-dimethyl-;C.I. Solvent Yellow 34;4,4′-Carbonimidoylbis[N,N-dimethylbenzenamine];C.I. 41000B;Auramine N Base;Auramine O Base;Auramine SS;Brilliant Oil Yellow;4,4′-Dimethylaminobenzophenonimide;Waxoline Yellow O;Auramine base;Auramine OAF;Baso Yellow 124;Orient Oil Yellow 101;4,4′-(Imidocarbonyl)bis(N,N-dimethylaniline);Solvent Yellow 34;Auramine S;105913-60-8 |
492-80-8 | Inquiry | |
Fluorescein Free Acid |
FLUORESCEIN, FREE ACIDFLUORESCEIN, FREE ACIDFLUORESCEIN, FREE ACID;Diresorcinolphthalein;Tetraoxyphthalophenone anhydride;SOLVENT YELLOW 94;S NO 880;RESORCINOL PHTHALEIN;FLUORESCEIN, ALCOHOL SOLUBLE;FLUORESCEIN |
2321-07-5 | Inquiry | |
Gentian Violet |
Methanaminium,N-[4-[bis[4-(dimethylamino)phenyl]methylene]-2,5-cyclohexadien-1-ylidene]-N-methyl-,chloride (1:1);C.I. Basic Violet 3;Methanaminium,N-[4-[bis[4-(dimethylamino)phenyl]methylene]-2,5-cyclohexadien-1-ylidene]-N-methyl-,chloride;C.I. 42555;Adergon;Aizen Crystal Violet;Aizen Crystal Violet Extra Pure;Aniline violet pyoktanine;Axuris;Badil;Basic Violet BN;Calcozine Violet C;Calcozine Violet 6BN;Crystal Violet 5BO;Crystal Violet 6BO;Crystal Violet AO;Crystal Violet AON;Crystal Violet BPC;Crystal Violet chloride;Crystal Violet Extra Pure;Crystal Violet Extra Pure APN;Crystal Violet Extra Pure APNX;Crystal Violet FN;Crystal Violet HL 2;Crystal Violet Pure DSC;Crystal Violet Pure DSC Brilliant;Crystal Violet SS;Crystal Violet Technical;Crystal Violet USP;Crystal Violet O;Crystal Violet 6B;Crystal Violet 10B;Gentersal;Gentiaverm;Hectograph Violet SR;Hecto Violet R;Hexamethylpararosaniline chloride;Hexamethyl-p-rosaniline chloride;Hidaco Brilliant Crystal Violet;Methylrosaniline chloride;Methyl Violet 5BNO;Methyl Violet 5BO;Methyl Violet 10BO;Methyl Violet 10BD;Methyl Violet 10BK;Methyl Violet 10B;Methyl Violet 10BN;Mitsui Crystal Violet;Paper Blue R;Pararosaniline,N,N,N′,N′,N′′,N′′-hexamethyl-,chloride;Plastoresin Violet 5BO;Pyoktanin;Viocid;Violet 5BO;12416 Violet;Violet CP;Violet 6BN;Crystal Violet BP;Gentian violet;Crystal violet;Violet XXIII;Aniline violet;7077-31-8;23355-47-7 |
548-62-9 | Inquiry | |
Malachite Green Oxalate |
Methanaminium,N-[4-[[4-(dimethylamino)phenyl]phenylmethylene]-2,5-cyclohexadien-1-ylidene]-N-methyl-,ethanedioate,ethanedioate (2:2:1);Malachite green oxalate;Ammonium,[4-[p-(dimethylamino)-α-phenylbenzylidene]-2,5-cyclohexadien-1-ylidene]dimethyl-,oxalate (1:1),oxalate (1:1);Ethanedioic acid,ion(1-),N-[4-[[4-(dimethylamino)phenyl]phenylmethylene]-2,5-cyclohexadien-1-ylidene]-N-methylmethanaminium,ethanedioate (2:1);Malachite green oxalate salt;C. I. Basic Green;150854-09-4;1313818-54-0 |
2437-29-8 | Inquiry | |
Metanil Yellow |
Benzenesulfonic acid,3-[2-[4-(phenylamino)phenyl]diazenyl]-,sodium salt (1:1);C.I. Acid Yellow 36,monosodium salt;Benzenesulfonic acid,3-[[4-(phenylamino)phenyl]azo]-,monosodium salt;C.I. Acid Yellow 36;Benzenesulfonic acid,m-(p-anilinophenylazo)-,sodium salt;C.I. 13065;Acid Leather Yellow R;Acid Leather Yellow PRW;Acid Yellow 36;Aizen Metanil Yellow;Amacid Yellow M;Brasilan Metanil Yellow;Bucacid Metanil Yellow;Calcocid Yellow MXXX;Diacid Metanil Yellow;Eniacid Metanil Yellow GN;Ext D and C Yellow No. 1;Fenazo Yellow M;Hidacid Metanil Yellow;Hispacid Yellow MG;Java Metanil Yellow G;Kiton Orange MNO;Kiton Yellow MS;Metanile Yellow O;Metanil Yellow C;Metanil Yellow S;Metanil Yellow Y;Metanil Yellow Extra;Metanil Yellow Griesbach;Metanil Yellow K;Metanil Yellow M 3X;Metanil Yellow O;Metanil Yellow KRSU;Metanil Yellow PL;Metanil Yellow Supra P;Metanil Yellow VS;Metanil Yellow G;Metanil Yellow WS;Metanil Yellow YK;Mitsui Metanil Yellow;Shikiso Metanil Yellow;Sodium m-sulfonate-p-phenylazodiphenylamine;Symulon Metanil Yellow;Takaoka Metanil Yellow;Tertracid Yellow M;Tropaeolin G;Vondacid Metanil Yellow G;11363 Yellow;Yodochrome Metanil Yellow;Metanil Yellow E;Metanil Yellow F;Metanil Yellow 1955;Metanil Yellow;Metanilic Yellow;Sodium m-(4-anilinophenylazo)benzenesulfonate;Sodium 4′-anilinoazobenzene-3-sulfonate;Remaderm Yellow HPR;Acid Yellow Metanil;C Ext. Yellow 10;53988-78-6;68417-63-0;84842-92-2;1173501-41-1 |
587-98-4 | Inquiry | |
Methyl Orange |
Benzenesulfonic acid,4-[2-[4-(dimethylamino)phenyl]diazenyl]-,sodium salt (1:1);Orange III;Benzenesulfonic acid,p-[[p-(dimethylamino)phenyl]azo]-,sodium salt;Benzenesulfonic acid,4-[[4-(dimethylamino)phenyl]azo]-,sodium salt;C.I. 13025;Eniamethyl Orange;Gold orange;Helianthine B;KCA Methyl Orange;Methyl Orange B;Sodium p-dimethylaminoazobenzenesulfonate;Tropaeolin D;C.I. Acid Orange 52;Methyl orange;Helianthine;Diazoben;Sodium 4′-(dimethylamino)azobenzene-4-sulfonate;Orange 3;Sodium 4-(dimethylamino)azobenzene-4′-sulfonate;4-Dimethylaminoazobenzene-4′-sulfonic acid sodium salt;Sodium 4-[4-(dimethylamino)phenylazo]benzenesulfonate;Sodium p-[[p-(dimethylamino)phenyl]azo]benzenesulfonate;Acid Orange 52;Albion Methyl Orange;Sodium 4-[(4-dimethylamino)phenyldiazenyl]benzenesulfonate;1342-24-1;66777-17-1;1773488-61-1 |
547-58-0 | Inquiry | |
Phloxine B |
Spiro[isobenzofuran-1(3H),9′-[9H]xanthen]-3-one,2′,4′,5′,7′-tetrabromo-4,5,6,7-tetrachloro-3′,6′-dihydroxy-,sodium salt (1:2);Fluorescein,2′,4′,5′,7′-tetrabromo-4,5,6,7-tetrachloro-,disodium salt;Spiro[isobenzofuran-1(3H),9′-[9H]xanthen]-3-one,2′,4′,5′,7′-tetrabromo-4,5,6,7-tetrachloro-3′,6′-dihydroxy-,disodium salt;Phloxin B;Eosine blue;Eosine bluish;11969 Red;Eosin blue;D and C Red No. 28;C.I. Acid Red 92;Phloxine B;Disodium 9-(3′,4′,5′,6′-tetrachloro-o-carboxyphenyl)-6-hydroxy-6-hydroxy-2,4,5,7-tetrabromo-3-isoxanthone;3427 Veri Pur Pink;Acid Red 92;Eosin bluish;Cyanosin (acid dye);C.I. 45410;Cyanosine;Food Red 104;Phloxine P;Red 104;Food Red No. 104;Red No. 104;Orient Water Pink 2;Aizen Acid Phloxine PB;Cyanosin;Japan Red 104;Cyanosin B;Daiwa Red 45;Red No.104-1;Japan Red 104-1;Water Pink 2;D&C Red 28;D&C Red No. 28;Phyloxine B;Daiwa Red 104WB;Japan Red No. 104-1;D&C Red No. 28-15347;Triacid Floxine 2G;D&C Red No. 28-38015;D&C Red 28-308267;Phloxine B 38015;DermaGlo DG-R 428;Red No. 28;12777-84-3;37361-25-4;51374-31-3;157367-38-9;198831-99-1;840499-87-8 |
18472-87-2 | Inquiry | |
Rhodamine 6G |
Xanthylium,9-[2-(ethoxycarbonyl)phenyl]-3,6-bis(ethylamino)-2,7-dimethyl-,chloride (1:1);Rhodamine 6GCP;Benzoic acid,o-[6-(ethylamino)-3-(ethylimino)-2,7-dimethyl-3H-xanthen-9-yl]-,ethyl ester,monohydrochloride;Xanthylium,9-[2-(ethoxycarbonyl)phenyl]-3,6-bis(ethylamino)-2,7-dimethyl-,chloride;C.I. 45160;Calcozine Red 6G;Calcozine Rhodamine 6GX;Eljon Pink Toner;C.I. Basic Red 1;Fanal Pink GFK;Fanal Red 25532;Heliostable Brilliant Pink B extra;Mitsui Rhodamine 6GCP;Nyco Liquid Red GF;Rhodamine F 5G;Rhodamine Y 20-7425;Rhodamine 4GD;Rhodamine 4GH;Rhodamine 5GDN;Rhodamine 5GL;Rhodamine 6GB;Rhodamine 6GBN;Rhodamine 6GDN;Rhodamine 6GH;Rhodamine 6G Extra;Rhodamine 6GDN Extra;Rhodamine 6G Extra Base;Rhodamine 6GX;Rhodamine 6JH;Silosuper Pink B;Rhodamine 6G;Rhodamine Zh;Rhodamine 6GEx ethyl ester;Rhodamin 6G;Rhodamine GDN;Rhodamine 6GD;Rhodamine 6Zh-DN;Aizen Rhodamine 6GCP;Rhodamine 6GO;Rhodamine F 5GL;Fanal Pink B;Rhodamine 6G chloride;Vali Fast Red 1308;Flexo Red 482;Rhodamine 6JH-SA Extra 1150;Rhodamine 5GDN Extra;Rhodamine GDN Extra;Basonyl Red 483;Basonyl Red 482;Basic Red 1;Rh 6G;R 6G;Rhodamine 6JH-SA;NSC 36345;Exciton 590;R 634;6-Carboxyrhodamine;6GDN;23479-08-5;37317-74-1;66796-55-2;79818-96-5;82853-32-5;88491-15-0;102395-11-9;126371-14-0;136590-25-5;160336-35-6;162887-53-8;201799-71-5;226555-16-4;232598-90-2;539820-31-0;1021498-98-5;1173373-14-2;1228661-69-5;1239677-99-6 |
989-38-8 | Inquiry | |
Rhodamine B |
Xanthylium,9-(2-carboxyphenyl)-3,6-bis(diethylamino)-,chloride (1:1);[9-(o-Carboxyphenyl)-6-(diethylamino)-3H-xanthen-3-ylidene]diethylammonium chloride;Ammonium,[9-(o-carboxyphenyl)-6-(diethylamino)-3H-xanthen-3-ylidene]diethyl-,chloride;Xanthylium,9-(2-carboxyphenyl)-3,6-bis(diethylamino)-,chloride;11411 Red;C.I. 45170;ADC Rhodamine B;Aizen Rhodamine BH;Akiriku Rhodamine B;Calcozine Red BX;Calcozine Rhodamine BXP;Cerise Toner X 1127;Diabasic Rhodamine B;Edicol Supra Rose B;Eriosin Rhodamine B;Hexacol Rhodamine B Extra;Ikada Rhodamine B;Mitsui Rhodamine BX;Rheonine B;Rhodamine,tetraethyl-;Rhodamine B;Rhodamine BA;Rhodamine BA Export;Rhodamine BN;Rhodamine BS;Rhodamine BX;Rhodamine BXL;Rhodamine BXP;Rhodamine B Extra S;Rhodamine B Extra M 310;Rhodamine FB;Rhodamine Lake Red B;Sicilian Cerise Toner A 7127;Symulex Magenta F;Symulex Rhodamine B Toner F;Takaoka Rhodamine B;Tetraethylrhodamine;C.I. Food Red 15;Aizen Rhodamine BHC;Edicol Supra Rose BS;Rhodamine B Extra;D and C Red No. 19;C.I. Basic Violet 10;FD And C Red No. 19;Rhodamine B 500 hydrochloride;Basic Violet 10;Red No. 213;Rhodamine B 500;Rhodamine S (Russian);Rhodamine S;Rhodamine O;Japan Red 213;Japan Red No. 213;Flexo Red 540;Basonyl Red 540;D&C Red No. 19;Basonyl Red 545;Basazol Red 71P;Aizen Rhodamine B;Rhodamine 610 chloride;Sumiplast Pink B;Brilliant Pink B;OP 312;Basic Rose Red;D&C Red 19;Basic Rose Extract;3521-79-7;11111-29-8;17181-58-7;53664-59-8;69319-23-9;86513-49-7;86893-15-4;96119-80-1;105480-59-9;248928-56-5;408346-58-7;412909-17-2;433215-26-0;539821-35-7;850856-47-2;859039-47-7;875572-56-8;918962-66-0;925914-34-7;956491-27-3;1023342-65-5;1051370-49-0;1236042-79-7;1394971-11-9;1773488-62-2;1825993-87-0;2254248-91-2 |
81-88-9 | Inquiry | |
Sudan Black B |
1H-Perimidine,2,3-dihydro-2,2-dimethyl-6-[2-[4-(2-phenyldiazenyl)-1-naphthalenyl]diazenyl]-;Sudan Black B;C.I. Solvent Black 3;1H-Perimidine,2,3-dihydro-2,2-dimethyl-6-[[4-(phenylazo)-1-naphthalenyl]azo]-;2,3-Dihydro-2,2-dimethyl-6-[2-[4-(2-phenyldiazenyl)-1-naphthalenyl]diazenyl]-1H-perimidine;C.I. 26150;Ceres Black BN;Fast Black HBN;Fat Black HB;Hexatype Black B;Lacquer Black S;Lacquer Black VB;Nubian Black BT;Oil Black BT;Sudan Deep Black BB;Typogen Black;2,3-Dihydro-2,2-dimethyl-6-[[4-(phenylazo)-1-naphthyl]azo]perimidine;6-(1-Phenylazo-4-naphthylazo)-2,3-dihydro-2,2-dimethylperimidine;Sudan Deep Black BN;2,3-Dihydro-2,2-dimethyl-6-[(4-phenylazo-1-naphthalenyl)-azo]-1H-perimidine;Oil Black HBB;Orient Oil Black HBB;Sudan Black X 60;SOT-Black 6;Solvent Black 3;Neptune Black X 60;Aizen SOT Black 6;Fat Black HB 01;Orient Oil Black 860;Sudan Black 141;Oil Black 860;NSC 11239;Chuo Sudan Black 141;Oil Black HZ;Sudan Black;Sudan Black BB;Oil Black 141;(2,2-Dimethyl-1,3-dihydroperimidin-6-yl)-(4-phenyldiazenylnaphthalen-1-yl)diazene;2,2-Dimethyl-6-[[4-(phenyldiazenyl)-1-naphthyl]diazenyl]-2,3-dihydro-1H-perimidine;Polysolve Black 3;39289-84-4;72145-94-9;100041-52-9;143350-89-4 |
4197-25-5 | Inquiry | |
Tartrazine |
1H-Pyrazole-3-carboxylic acid,4,5-dihydro-5-oxo-1-(4-sulfophenyl)-4-[2-(4-sulfophenyl)diazenyl]-,sodium salt (1:3);C.I. Acid Yellow 23;Tartrazine;C.I. Acid Yellow 23,trisodium salt;1H-Pyrazole-3-carboxylic acid,4,5-dihydro-5-oxo-1-(4-sulfophenyl)-4-[(4-sulfophenyl)azo]-,trisodium salt;Tartrazine B.P.C.;C.I. 19140;Acid Leather Yellow T;Acid Yellow T;Acid Yellow 23;Acilan Yellow GG;Airedale Yellow T;Aizen Tartrazine;Amacid Yellow T;D and C Yellow No. 5;Atul Tartrazine;Bucacid Tartrazine;Calcocid Yellow MCG;Calcocid Yellow XX;Canacert Tartrazine;3-Carboxy-5-hydroxy-1-p-sulfophenyl-4-p-sulfophenylazopyrazole trisodium salt;Certicol Tartrazol Yellow S;Cilefa Yellow T;C.I. Food Yellow 4;Curon Fast Yellow 5G;Dolkwal Tartrazine;Edicol Supra Tartrazine N;Egg Yellow A;Erio Tartrazine;Eurocert Tartrazine;FD and C Yellow No. 5;Fenazo Yellow T;HD Tartrazine;HD Tartrazine Supra;Hexacert Yellow No. 5;Hexacol Tartrazine;Hidazid Tartrazine;Hispacid Fast Yellow T;Hydrazine yellow;Hydroxine Yellow L;Kako Tartrazine;Kayaku Food Colour Yellow No. 4;Kayaku Tartrazine;KCA Foodcol Tartrazine PF;KCA Tartrazine PF;Kiton Yellow T;Lake Yellow;Lemon Yellow A;Lemon Yellow A Geigy;Maple Tartrazol Yellow;Mitsui Tartrazine;Naphtocard Yellow O;Neklacid Yellow T;Oxanal Yellow T;San-ei Tartrazine;Sugai Tartrazine;Tartar Yellow N;Tartar Yellow FS;Tartar Yellow PF;Tartar Yellow S;Tartran Yellow;Tartraphenine;117209-34-4;134240-82-7;139601-06-2;642-62-6;1342-47-8;1342-53-6;12000-64-5;50809-64-8;84842-94-4;389057-90-3;469888-21-9;154881-98-8;183808-13-1;191807-79-1 |
1934-21-0 | Inquiry | |
Victoria Blue R |
Methanaminium,N-[4-[[4-(dimethylamino)phenyl][4-(ethylamino)-1-naphthalenyl]methylene]-2,5-cyclohexadien-1-ylidene]-N-methyl-,chloride (1:1);C.I. Basic Blue 11;Victoria Blue R;Methanaminium,N-[4-[[4-(dimethylamino)phenyl][4-(ethylamino)-1-naphthalenyl]methylene]-2,5-cyclohexadien-1-ylidene]-N-methyl-,chloride;C.I. 44040;Hidaco Victoria Blue R;Victoria Blue RS;Victoria Lake Blue R;Basic Blue K;Aizen Victoria Blue BOH;Basic Blue 11;Dycosbasic Victoria Blue R;Basic Victoria Blue R;Conbasic Blue AA |
2185-86-6 | Inquiry |