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• Solvent Red 27

IUPAC Name: 1-[[4-(2,5-dimethylphenyl)diazenyl-2,5-dimethylphenyl]hydrazinylidene]naphthalen-2-one | CAS Registry Number: 1320-06-5
Synonyms: Oil red O, ZINC03861442, ZINC12358723, CID6821284

Molecular Formula:	C₂₆H₂₄N₄O	Molecular Weight:	408.494960 [g/mol]
H-Bond Donor:	1	H-Bond Acceptor:	5

InChIKey: HJAYEODIXUYVIC-UHFFFAOYSA-N

• Tannic Acid

Synonyms: TANNIC ACID, Tannic acid (TN), Tannic acid (JP15/USP), NSC5031, NSC656273, D01959, D-Glucopyranose, pentakis[3,4-dihydroxy-5-[(3,4,5-trihydroxybenzoyl)oxy]benzoate], 72401-53-7

Molecular Formula:	C₇₆H₅₂O₄₆	Molecular Weight:	1701.198480 [g/mol]
H-Bond Donor:	25	H-Bond Acceptor:	46

InChIKey: LRBQNJMCXXYXIU-UHFFFAOYSA-N

• Tartrazine (Acid Yellow N)

IUPAC Name: trisodium 5-oxo-1-(4-sulfonatophenyl)-4-(4-sulfonatophenyl)diazenyl-4H-pyrazole-3-carboxylate | CAS Registry Number: 1934-21-0
Synonyms: Tartrazine, Aizen tartrazine, Acid Yellow, Yellow 5, A.F. Yellow No. 4, C.I. ACID YELLOW 23, NSC4760, AIDS012296, AIDS-012296, C.I. 640, LS-162700, C.I. 19140, C07574, 1342-47-8, Trisodium 5-oxo-1-(4-sulfonatophenyl)-4-[(E)-(4-sulfonatophenyl)diazenyl]-4,5-dihydro-1H-pyrazole-3-carboxylate

Molecular Formula:	C₁₆H₉N₄Na₃O₉S₂	Molecular Weight:	534.363370 [g/mol]
H-Bond Donor:	0	H-Bond Acceptor:	12

InChIKey: UJMBCXLDXJUMFB-UHFFFAOYSA-K

• Thymol Blue

IUPAC Name: 4-[3-(4-hydroxy-2-methyl-5-propan-2-ylphenyl)-1,1-dioxobenzo[c]oxathiol-3-yl]-5-methyl-2-propan-2-ylphenol | CAS Registry Number: 76-61-9
Synonyms: Thymol blue, Thymolsulfophthalein, Thymosulfonphthalein, Thymolsulfonephthalein, Thymolsulphonphthalein, Thymolsulfonephalein, NSC11238, EINECS 200-973-3, NSC 11238, AIDS124079, AIDS-124079, BRN 0368036, ZINC03860919, LS-153802, ST5308018, 5-19-03-00462 (Beilstein Handbook Reference), Thymol, 6,6'-(3H-2,1-benzoxathiol-3-ylidene)di-, S,S-dioxide, Phenol, 4,4'-(3H-2,1-benzoxathiol-3-ylidene)bis[5-methyl-2-(1-methylethyl)-, S,S-dioxide, Phenol, 4,4'-(1,1-dioxido-3H-2,1-benzoxathiol-3-ylidene)bis(5-methyl-2-(1-methylethyl)-, Phenol, 4,4'-(3H-2,1-benzoxathiol-3-ylidene)bis(5-methyl-2-(1-methylethyl)-, S,S-dioxide

Molecular Formula:	C₂₇H₃₀O₅S	Molecular Weight:	466.589100 [g/mol]
H-Bond Donor:	2	H-Bond Acceptor:	5

InChIKey: PRZSXZWFJHEZBJ-UHFFFAOYSA-N

• Toluidine Blue O

IUPAC Name: (7-amino-8-methylphenothiazin-3-ylidene)-dimethylazanium chloride | CAS Registry Number: 92-31-9
Synonyms: Toluidine Blue, Blutene chloride, Tolonium, Blutene, Gabilin, Menodin, Tolazul, Klot, Toloni chloridum, Basic Blue 17, F Klot, Toluidine Blue OO, TOLONIUM CHLORIDE, Schultz 1041, Toluidinblau [German], Toluidine Blue- O, Toluidine Blue 00, C.I. Basic Blue 17, Schultz no. 1041, Toluidene Blue O Chloride

Molecular Formula:	C₁₅H₁₆ClN₃S	Molecular Weight:	305.825640 [g/mol]
H-Bond Donor:	1	H-Bond Acceptor:	3

InChIKey: GEDVVYWLPUPJJZ-UHFFFAOYSA-N

• Trypan Blue

IUPAC Name: tetrasodium (3Z)-5-amino-3-[[4-[4-[(2Z)-2-(8-amino-1-oxo-3,6-disulfonatonaphthalen-2-ylidene)hydrazinyl]-3-methylphenyl]-2-methylphenyl]hydrazinylidene]-4-oxonaphthalene-2,7-disulfonate | CAS Registry Number: 72-57-1
Synonyms: Diamineblue, Dianilblau, Pyrotropblau, Parkibleu, Parkipan, VisionBlue, Bleu diamine, Chloramine Blue, Benzamine Blue, Diaminine Blue, Dianil blue, Niagara Blue, Trypane Blue, Tripan Blue, Vision Blue, Benzo Blue, Congo Blue, Benzaminblau 3B, Chloramiblau 3B, Bleu trypane N

Molecular Formula:	C₃₄H₂₄N₆Na₄O₁₄S₄	Molecular Weight:	960.805240 [g/mol]
H-Bond Donor:	4	H-Bond Acceptor:	20

InChIKey: WMYVHJWZUUEZNE-ARWFNKCKSA-J

• Wright's Stain

IUPAC Name: [7-(dimethylamino)phenothiazin-3-ylidene]-dimethylazanium; 2-(2,4,5,7-tetrabromo-3,6-dihydroxyxanthen-10-ium-9-yl)benzoic acid | CAS Registry Number: 68988-92-1
Synonyms: Wright's stain

Molecular Formula:	C₃₆H₂₇Br₄N₃O₅S+₂	Molecular Weight:	933.297680 [g/mol]
H-Bond Donor:	3	H-Bond Acceptor:	6

InChIKey: AXIKDPDWFVPGOD-UHFFFAOYSA-O