Acid Yellow 23 - Tartrazine 200%

£21.99

TARTRAZINE 200% ACID YELLOW 23 Other names: CI NO 19140;CI ACID YELLOW 23;CI 19140;E102;LAKE TARTRAZINE;KITON YELLOW T;HYDRAZINE YELLOW; FILTER YELLOW;ACID YELLOW T;ACID YELLOW 23;3-CARBOXY-5-HYDROXY-1-P-SULFOPHENYL-4-P-SULFOPHENYLAZO­PYRAZOLE TRISODIUM SALT;5-HYDROXY-1-(P-SULFOPHENYL)-4-[(P-SULFOPHENYL)A­ZO]PYRAZOLE-3-CARBOXYLIC ACID TRISODIUM SALT;TARTRAZINE O;TARTRAZINE;TAR­TAZINE;WOOL Y­ELLOW Formula: C16H9Na3N4O9S2 F.W. 534.37 CAS: 1934-21-0 C.I. 19140 FD&C Yellow #5 MP: 300C Colour Index: 19140 Water solubility: 260g/L (30C) Stability: Stable. Hygroscopic. Incompatible with strong oxidising agents. USES FOR...

Basic Red 46 - Acrylene Red Grl 200%

£16.99

Basic Red 46 Acrylene Red GRL 200% Other Names: C.I. BASIC RED 46; Catonic Red X-GRL; ASTRAZONRED; Cationic Red XL-GRL; Apollo Cationic Red GRL; Basic Red X-GR2; Estrol Red N-GSL; Kayacryl Red GRL; Panacryl Red GRL; Sandocryl Red B-RLN; Yoracryl Red BGL; Youhaocryl Red X-GRL. Formula: C18H21N6 Mol Wt: 401,31 CAS No: 89959-98-8 EINECS: 289-660-0 Appearance: Dark red powder Light fastness:...

Basic Yellow 28 - Acrylene Golden Yellow Gl

£16.99

Basic Yellow 28 Acrylene Golden Yellow GL Other Names: SPECIAL GOLDEN YELLOW GL;BASIC YELLOW 28;Catonic Gold Yellow X-GL;2-[[(4-methoxyphenyl)met­hylhydrazono]met­hyl]-1,3,3-trimethyl-3H-indolium methyl sulphate;C.I. BASIC YELLOW 28;Catonic Golden Yellow GL;Basicgolde­neyellowGL;Ca­tionicgoldeny­ellowX-GL Formula: C20H24N3O?CH3­O4S Mol Wt: 433.52 CAS No: 54060-92-3 EINECS: 258-946-7 Appearance: yellow powder Light Light fastness: 6 Wash fastness: 4-5 Sweat fastness: 5 Seawater fastness: 5 Use: for wool, silk, leather Packing: USES FOR...

Blue Candle Dye - Solvent Blue 35

£16.99

Blue Candle Dye Solvent Blue 35 Technical grade Other Names: C.I. Solvent blue; C.I. 48160; Oil Blue 35; Blue 2N, Sudan Blue 2 CAS No: 17354-14-2 Solubility: Soluble in toluene, benzene, ethanol, Chloroform, Acetone and organic solvent; Insoluble in water Molecular Formula: C22H26N2O2 Molecular Weight: 350.45   PLEASE NOTE: This product is not for human or animal consumption.

Disperse Yellow 7 GRG - C.I. 26090

£9.99

Disperse Yellow General reagent grade SPECIFICATION: Other names: C.I. 26090; (4E)-2-methyl-4-[(4-phenyldiazenyl­phenyl)hydrazi­nylidene]cyclo­hexa-2,5-dien-1-one; 4-[4-(Phenylazo)Phe­nylazo]-O-Cresol ; 2-Methyl-4-((4-(Phenylazo)Phe­nyl)Azo)-Phenol ; 4-[(4-Phenylazo)Phe­nylazo]-2-Methylphenol ; Acetatefastye­llow5rl; CAS No: 6300-37-4 EC No: 228-587-0 Formula: C19H16N4O Appearance: yellow powder Specific gravity: 1.17 g/cm3 @ 20C Flash point: 357.9C Melting point: 146-148C decomposes Boiling Point: 537C Vapour pressure: 6.18E-12 mmHg at 25C Solubility: soluble in water.   PLEASE NOTE: This product is not for human or animal consumption. Click here for MSDS

Evron Brilliant Blue R Dye - Acid Blue 80

£16.99

EVRON BRILLIANT BLUE ACID BLUE 80 General reagent grade Other Names: 4,4-(1,4-anthraquinony­lenediimino)di-2-mesitylenesul­fonicaci disodiums;4,6-trimethyl-) bis (disodiumsalt;4,6-trimethyl-]bis[disodiumsalt; acid anthraquinone brilliant blue;acid brilliant blue anthraquinone; acid brilliant bluerawl, alizarine milling blue r;atlanticalizarine milling blue r b; benzenesulfoni­cacid,3,3-((9,10-dihydro-9,10-dioxo-1,4-anthracenediyl) diimino; benzenesulfoni­cacid,3,3-[(9,10-dihydro-9,10-dioxo-1,4-anthracenediyl) diimino; C.1. Acid Blue 80 (61585); C.I. Acid blue 80; coomassie blue b; c-wrblue10; endanil blue b; Leather Blue RAW; Milling Fast Blue SBL; nylosan blue...

Fehlings Solution No 2 GRG

£12.99

Fehlings solution No 2 Technical grade Specification: Other Names: Alkaline potassium sodium tartrate solution Physical state: colourless liquid Specific gravity: 1.2 g/cm3 Boiling Point: 100 C Vapour Pressure: 23.0 hPa @ 20C Solubility: fully miscible in water What are Fehlings solutions No1 and No 2? Fehling's solution is deep-blue, alkaline solution used to test for the presence of aldehydes(e.g., formaldehyde, HCHO) or other compounds that contain the aldehyde functional group, -CHO....

Fluorescein Sodium Dye for use as fluorescent tracer

£16.99

FLUORESCEIN SODIUM POWDER C.I. ACID YELLOW 73 General reagent grade   Fluorescein is a synthetic organic compound available as a dark orange/red powder soluble in water and alcohol. It is widely used as a fluorescent water tracer and as a general dye.     Other names: Water Soluble fluorescein; C.I. Acid yellow 73, Fluorescein disodium salt, CI 45350, M.Wt: 376.28 CAS No: 518-47-8 Formula: C20H10Na2O5...

Iron Oxide Yellow - Pigment Yellow 42

£17.79

IRON OXIDE YELLOWTechnical gradeYellow Iron oxide also known as Pigment yellow 42 is yellow powder in the form of an alkaline oxide with comparatively stable chemical properties. It is slightly soluble in acids but completely dissolves in concentrated hydrochloric acid. Iron oxide is used in coating, printing ink and paint, and also as a coloring agent for building material, rubber and...

Red Candle Dye - Solvent Red 24

£16.99

Red Candle Dye Solvent Red 24 Technical grade Other Names: C.I. Solvent Red; C.I. 26105; Solvent Red 380, Transparent Red BR, Oil Ref BT, Oil Red 2B, Oil Red BR, Oil Red GBC, Sudan Red BB CAS No: 85-83-6 Solubility: Soluble in Ethanol, benzene, Acetone and organic solvent; Insoluble in water Molecular Formula: C24H20N4O Molecular Weight: 380.44 Melting Point: 184-185°C  ...

Rhodamine B 500% - Basic Violet 10

£16.99

RHODAMINE B - 500% Technical grade IUPAC Name: [9-(2-carboxyphenyl)-6-diethylamino-3-xanthenylidene]-diethylammonium chloride Other names: Rhodamine 610, C.I. Pigment Violet 1, Basic Violet 10, C.I. 45170 Formula: C28H31ClN2O3 CAS No: 81-88-9 Mol Wt: 479.02 Solubility in water: ~50 g/l Absorption Max: 542-556nm Excitation wavelength: 514nm Rhodamine B is often used as a tracer dye within water to determine the rate and direction of flow. Rhodamine dyes fluoresce and can thus be...

Solvent Black 5 - Nigrosine Spirit

£16.99

SOLVENT BLACK 5 Technical grade Other Names: C.I. Solvent Black 5; C.I. 50415; nigrosine w.n; spirit nigrosine ssb; orient spirit black sb; lake black extra; spirit black 5b; Nigrosine spirit soluble; CAS No: 11099-03-9 Solubility: Very soluble in Sodium carbonate solution. Soluble in ethanol, Methanol; Slightly soluble in Butyl acetate; Ethyl acetate; Benzene; Ether; Xylene; Insoluble in water, Linseed oil; Mineral...

Yellow Candle Dye - Solvent Yellow 93

£16.99

Yellow Candle Dye Solvent Yellow 93 Technical grade Other Names: C.I. Solvent yellow; C.I. 48160; Transparent yellow 3G CAS No: 4702-90-3 Solubility: Soluble in ethanol, Chloroform, Acetone and organic solvent; Insoluble in water Molecular Formula: C21H18N4O2 Molecular Weight: 358.39   PLEASE NOTE: This product is not for human or animal consumption.