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Biological dye

Biological dyes, also known as histological stains, are vital tools in biology and medicine. These dyes color biological specimens to enhance contrast and reveal cellular details under microscopes. Hematoxylin and eosin (H&E) is a common biological dye combo. Hematoxylin stains cell nuclei blue, while eosin imparts a pink hue to the cytoplasm. This staining technique aids in diagnostics and research, allowing scientists and pathologists to study tissues and cells more effectively.

Products of Biological dye
CAS No.Product NameMolecular Formula
10127-05-6Acid Yellow 54C18H13CrN4Na2O10S2
10127-27-2Acid Orange 74C16H11CrN5NaO8S
102062-36-2N-(3-Sulfopropyl)-3,3',5,5'-tetramethylbenzidine sodium saltC19H25N2NaO3S
102185-52-4Bromochlorophenol Blue sodium saltC19H9Br2Cl2NaO5S
10510-54-0Cresyl violet acetateC16H12N3O.C2H3O2
107-93-7(E)-Crotonic acidC4H6O2
108321-10-4Tetrabromophenol Blue sodium saltC19H5Br8NaO5S
11099-03-9Solvent Black 5
1126-58-5Girard's Reagent PC7H10N3O.Cl
115-39-9Bromophenol BlueC19H10Br4O5S
115-40-2Bromocresol PurpleC21H16Br2O5S
117-92-0Quinaldine RedC21H23IN2
118-48-9Isatoic anhydrideC8H5NO3
1184-43-6Tetranitroblue tetrazolium chlorideC40H28Cl2N12O10
12236-82-71-Amino-4-[[4-[[4-Chloro-6-[[3(Or4)-Sulfophenyl]Amino]-1,3,5-Triazin-2-Yl]Amino]-3-Sulfophenyl]Amino]-9,10-Dihydro-9,10-Dioxo-2-AnthracenesulfonicacidC29H20ClN7O11S3
123333-64-2Chlorphenol Red sodium saltC19H11Cl2O5S.Na
1239-45-8Ethidium bromideC21H20BrN3
1248-18-6Sodium 2-[(2-Hydroxynaphthyl)Azo]NaphthalenesulphonateC20H13N2NaO4S
125-31-5Xylenol blueC23H22O5S
12627-53-1Leishman's Stain
126605-73-03',6'-Dihydroxyspiro[2-Benzofuran-3,9'-Xanthene]-1-OneC20H12O5
129-73-74,4'-Bis(dimethylamino)triphenylmethaneC23H26N2
130-22-3Alizarin Red SC14H7NaO7S
13161-28-9Rhodamine 6G PerchlorateC28H31ClN2O3
132-31-04-[[4-(Dimethylamino)Phenyl]Imino]-1(4H)-NaphthalenoneC18H16N2O
132-32-13-Amino-9-ethylcarbazoleC14H14N2
1328-51-4Solvent Blue 38C32H14CuN8Na2O6S2
1328-53-6Pigment Geen 7
1343-78-8CochinealC22H20O13
1390-65-4CarmineC22H20O13
14038-43-8Prussian BlueFe4.[Fe(CN)6]3
141-20-8Diethylene Glycol MonolaurateC16H32O4
141-84-4RhodanineC3H3NOS2
14726-28-4Bis(4-benzamido-6-methoxy-m-toluenediazonium) tetrachlorozincate(C15H14N3O2)2.ZnCl4
14726-29-5Fast Blue RR salt2(C15H14ClN3O3).ZnCl2
14969-56-3Rhodanile BlueC48H48ClN5O3
1562-85-2GallocyanineC15H13ClN2O5
1562-90-9Celestin BlueC17H18N3O4.Cl
15876-47-8Ponceau 4R LakeC20H11AlN2O10S3
15905-32-5Erythrosine JC20H8I4O5
16201-96-04-PhenylazomaleinanilC16H11N3O2
16423-68-0Erythrosin BC20H6I4O5.2Na
1667-99-8Mordant Blue 29C23H13Cl2Na3O9S
169037-23-45-(Trifluoromethoxy)-1H-indole-2,3-dioneC9H4F3NO3
1718-34-9Sodium 5-[(4-nitrophenyl)azo]salicylateC13H9N3NaO5
1719-71-7Tetrazolium VioletC23H17ClN4
1733-12-6Cresol RedC21H18O5S
17630-76-15-ChloroisatinC8H4ClNO2
1811-28-53,6-Acridinediamine sulfate (2:1)2(C13H11N3).H2SO4
1829-00-1Titan YellowC28H19N5O6S4.2Na
1871-22-3Tetrazolium Blue ChlorideC40H32Cl2N8O2
1934-16-33,7-Bis(Ethylamino)-2,8-Dimethyl-Phenothiazin-5-Ium Chloride (1:1)C18H22ClN3S
1934-20-9Crocein Orange GC16H11N2O4S.Na
1945-77-3Methylthymol Blue sodium saltC37H40N2Na4O13S
20262-76-4C.I. Acid Blue 3 monosodium saltC27H31N2O7S2.Na
2051-85-6Solvent Orange 1C12H10N2O2
206-44-0FluorantheneC16H10
20691-84-3m-Methyl RedC15H15N3O2
207738-08-73,3',5,5'-Tetramethyl-[1,1'-biphenyl]-4,4'-diamine hydrochloride hydrateC16H20N2.2(HCl).xH2O
20780-72-74-BromoisatinC8H4BrNO2
20780-74-97-BromoisatinC8H4BrNO2
209518-16-1N,N-Bis(4-sulfobutyl)-3,5-dimethylaniline disodium salt C16H25NNa2O6S2
2103-64-2GalleinC20H12O7
2150-48-3Pyronin BC21H27N2O.Cl
2150-58-54-(4-Dimethylaminophenyl)Iminocyclohexa-2,5-Dien-1-OneC14H14N2O
2321-07-5FluoresceinC20H12O5
2353-45-9Food green 3C37H34N2Na2O10S3
2381-85-3Basic Blue 12C20H20ClN3O
2390-54-7Thioflavine TC17H19ClN2S
2411-89-4o-Cresolphthalein ComplexoneC32H32N2O12
2425-85-6Pigment Red 3C17H13N3O3
2516-05-4Methylene VioletC14H12N2OS
2519-30-4Food Black 1C28H17N5Na4O14S4
25296-54-2Tetrasodium 2-[[5-[1-[3-[[bis(2-oxido-2-oxo-ethyl)amino]methyl]-4-hydroxy-phenyl]-3-oxo-2-benzofuran-1-yl]-2-hydroxy-phenyl]methyl-(2-oxido-2-oxo-ethyl)amino]ethanoateC30H24N2Na4O12
2538-85-4Mordant Black 17C20H13N2NaO5S
2553-71-1Bromochlorophenol BlueC19H10Br2Cl2O5S
25641-18-3C.I. Acid Red 101C28H19N3O6S2.Na
25956-17-6Allura Red ACC18H14N2O8S2.2Na
2609-88-33,6-Bis(Diethylamino)-9-(2,4-Disulfophenyl)-Xanthylium Inner SaltC29H33N2NaO7S2
2610-05-1Chicago Sky Blue 6BC34H24N6Na4O16S4
2646-15-3Oil Blue NC24H30N2O2
2783-94-0Food Yellow 3C16H10N2Na2O7S2
2800-80-8Bromophenol RedC19H12Br2O5S
2869-83-2Janus Green BC30H31ClN6
28983-56-4Acid Blue 93C37H27N3Na2O9S3
30950-27-7PerillartineC10H15NO
3147-14-6CalmagiteC17H14N2O5S
33864-99-2Ingrain Blue 1C56H68Cl4CuN16S4
34487-61-1Phenol Red sodium saltC19H13NaO5S
34722-90-2Bromthymol Blue sodium saltC27H27Br2NaO5S
34725-61-6Bromophenol Blue sodium saltC19H10Br4O5S.Na
35340-49-9Dihydrofluorescein diacetateC24H18O7
3564-14-5Mordant Black 3C20H13N2NaO5S
3566-44-7Variamine Blue BC13H15ClN2O
3618-43-7Xylenol orange tetrasodium saltC31H28N2Na4O13S
3618-63-1Mordant Red 7C20H15N4NaO5S
3624-68-8Mordant Blue 9C16H9ClN2Na2O8S2
3625-57-8Nile Blue AC40H40N6O6S
3724-65-0Crotonic acidC4H6O2
37247-10-2Azure IIC16H18ClN3S.C15H16ClN3S
3761-53-3Acid Red 26C18H14N2Na2O7S2
3844-45-9Erioglaucine disodium saltC37H34N2Na2O9S3
39755-95-85-MethoxyisatinC9H7NO3
40470-68-6Fluorescent Brightener 378C30H26O2
40567-80-4Sodium 3-(N-ethyl-3-methylanilino)propanesulfonateC12H18NNaO3S
4196-99-0Acid Red 66C22H14N4Na2O7S2
4197-07-3Chromotrope 2RC16H10N2O8S2.2Na
4197-24-4Carbol FuchsinC21H21N3.HCl
4430-24-4Iodophenol BlueC19H10I4O5S
4569-86-2Methylene Violet 3RAXC22H23ClN4
4569-88-4Indoine BlueC30H24ClN5O
467-62-9Pararosaniline BaseC19H19N3O
4852-22-6ProcyanidinC30H26O13
486-84-0HarmaneC12H10N2
488-86-8Croconic acidC5H2O5
49735-71-92-Methoxy-4-nitrobenzenediazonium 1,5-naphthalenedisulfonateC10H7O6S2.C7H6N3O3
50984-88-8p-XylenolphthaleinC24H22O4
5141-20-8Light Green SFC37H34N2O9S3.2Na
517-28-2HematoxylinC16H14O6
523-21-7Sodium rhodizonateC6Na2O6
523-67-12-[2-Hydroxy-3-(2,4-Xylylcarbamoyl)-1-Naphthylazo]PhenolC25H21N3O3
531-53-3Azure A chlorideC14H14ClN3S
531-55-5Azure BC15H16ClN3S
5423-07-4Nitrazine yellowC16H8N4O11S2.2Na
54375-47-2Calcein BlueC15H15NO7
5438-36-85-IodovanillinC8H7IO3
547-57-9C.I. Acid Orange 6C12H19N2O5S.Na
547-58-0Methyl OrangeC14H14N3NaO3S
548-24-3Eosin BC20H6Br2N2O9.2Na
5486-84-0Fast Blue BB Salt2(C17H18ClN3O3).ZnCl2
55804-66-5Coumarin 314C18H19NO4
55804-67-6Coumarin 334C17H17NO3
56360-46-44',5'-Dibromo-3',6'-Dihydroxy-2',7'-Dinitro-Spiro[Isobenzofuran-1(3H),9'-[9H]Xanthen]-3-OneC20H6Br2N2O9
574-93-6PhthalocyanineC32H18N8
58969-01-0Basic fuchsine
5950-69-6HydrindantinC18H14O8
596-03-24',5'-DibromofluoresceinC20H10Br2O5
603-48-5Leucocrystal VioletC25H31N3
60311-02-6Sulforhodamine 101C31H30N2O7S2
604-44-44-Chloro-1-naphtholC10H7ClO
6054-99-5Mordant Yellow 10C13H8N2Na2O6S
608-05-95-MethylisatinC9H7NO2
6226-79-5Ponceau SC22H12N4Na4O13S4
62298-42-4Azure B eosinateC20H6Br4O5.2(C15H16N3S)
6262-21-13,4,5,6-TetrachlorofluoresceinC20H8Cl4O5
62625-21-2Sodium Thymol BlueC27H29NaO5S
62625-28-9Bromophenol Blue sodium saltC19H9Br4NaO5S
62625-29-0Cresol RedC21H17NaO5S
62625-32-5Bromocresol GreenC21H13Br4NaO5S
6268-05-9CI 37155
62758-12-7Ethyl orange sodium saltC16H18N3O3S.Na
62758-13-8Resazurin sodium saltC12H6NNaO4
62851-42-7Jenner's Stain
63451-28-52-[2-[4-(Dimethylamino)Phenyl]Diazenyl]-Benzoic Acid Hydrochloride (1:1)C15H16ClN3O2
6368-72-5Sudan Red 7BC24H21N5
64071-86-92,5-Dimethoxy-4-((4-Nitrophenyl)Azo)-Benzenediazonium (T-4)-Tetrachlorozincate(2-) (2:1)C14H14Cl3N5O4Zn
6408-31-7Acid Red 183C16H10ClCrN4O9S2.2Na
64285-73-03,3',5,5'-Tetramethylbenzidine dihydrochlorideC16H20N2.2(HCl)
65-61-2N3,N3,N6,N6-Tetramethyl-3,6-Acridinediamine Hydrochloride (1:1)C17H20ClN3
6586-05-6New Methylene Blue AC18H22N3S.x(ZnCl2).Cl
6709-58-64-[2-(2,6-Dichloro-4-nitrophenyl)diazenyl]-2,5-dimethoxy-BenzenediazoniumC14H10Cl2N5O4
67763-24-0Bromocresol Green Sodium SaltC21H13Br4NaO5S
68988-92-1Wright's stain
7057-57-08-Dimethylamino-2,3-Benzophenoxazine Hemi(Zinc Chloride) SaltC18H15Cl3N2OZn
71939-12-32,8-Bis(2,4-dihydroxyphenyl)-7-hydroxy-3H-phenoxazin-3-oneC24H15NO7
7423-31-61-Ethyl-2-[3-(1-Ethylnaphtho[1,2-d]Thiazol-2(1H)-Ylidene)-2-Methyl-1-Propen-1-Yl]-Naphtho[1,2-d]Thiazolium Bromide (1:1)C30H27BrN2S2
76-59-5Bromothymol BlueC27H28Br2O5S
76-60-8Bromocresol greenC21H14Br4O5S
76058-33-8Ethyl RedC17H19N3O2
77172-72-63,4,5,6-TetrabromophenolsulfonephthaleinC19H10Br4O5S
80-22-83-Amino-N-butyl-4-methoxybenzenesulfonamideC11H18N2O3S
8006-34-6Azur BC15H16ClN3S
8015-86-9Carnauba wax
81-93-6PhenosafraninC18H15ClN4
81012-93-3Thymol BlueC27H29NaO5S
81029-05-2Brilliant Cresyl Blue2(C17H21N4O).ZnCl4
82611-85-6N-Ethyl-N-(3-sulfopropyl)aniline sodium saltC11H16NNaO3S
82611-88-9N-Ethyl-N-(3-sulfopropyl)-3-methoxyaniline sodium saltC12H18NO4SNa
82692-88-4N-(2-Hydroxy-3-sulfopropyl)-3,5-dimethoxyaniline sodium saltC11H16NNaO6S
82692-93-1Sodium 3-(N-ethyl-3-methylanilino)-2-hydroxypropanesulfonateC12H18NNaO4S
82692-96-4N-Ethyl-N-(2-hydroxy-3-sulfopropyl)-3-methoxyaniline sodium salt dihydrateC12H18NNaO5S.2(H2O)
82692-97-5N-Ethyl-N-(2-hydroxy-3-sulfopropyl)-3,5-dimethylaniline sodium salt monohydrateC13H20NNaO4S.H2O
83777-30-4N-Ethyl-N-(2-hydroxy-3-sulfopropyl)-3,5-dimethoxyaniline sodium saltC13H20NO6SNa
83833-14-1alpha-Naphthyl Red HydrochlorideC16H14ClN3
992-59-6Benzopurpurin 4BC34H26N6Na2O6S2


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