معرف متیل زرد

Methyl yellow
IUPAC name p-Dimethylaminoazobenzene
Other names 4-Dimethylaminoazobenzene, N,N-Dimethyl-4-phenylazoaniline, N,N-Dimethyl-4-aminoazobenzene, Butter Yellow, Solvent Yellow 2, C.I. 11020
Properties
Molecular formula	C14H15N3
Molar mass	225.289 g.mol-1
Appearance	Yellow crystals
Melting point	116 °C (decomp.)
Solubility in water	13.6 mg.l-1
log P	4.58

معرف مالاشیت سبز

Malachite green
IUPAC name 4-[(4-dimethylaminophenyl)phenyl-methyl]-N,N-dimethylaniline
Other names Aniline green; Basic green 4; Diamond green B; Victoria green B
Properties
Molecular formula	C23H25ClN2 (chloride)
Molar mass	364.911 g/mol (chloride)

معرف متیل بنفش

Crystal violet
IUPAC name Tris(4-(dimethylamino)phenyl)methylium chloride
Other names Aniline violet Basic violet 3 Baszol Violet 57L Brilliant Violet 58 Hexamethyl-p-rosaniline chloride Methylrosanilide chloride Methyl Violet 10B Methyl Violet 10BNS Pyoktanin
Properties
Molecular formula	C25N3H30Cl
Molar mass	407.979 g mol-1
Exact mass	407.212825682 g mol-1
Melting point	205 °C, 478 K, 401 °F
Hazards
GHS pictograms

معرف برموفنول آبی

Bromophenol blue
IUPAC name 4,4'-(1,1-dioxido-3H-2,1-benzoxathiole-3,3-diyl)bis(2,6-dibromophenol)
Properties
Molecular formula	C19H10Br4O5S
Molar mass	669.96 g mol−1

معرف آلیزارین زرد

Alizarine Yellow R
Other names 5-[(p-nitrophenyl)azo]salicylic acid sodium salt Chrome Orange Mordant Orange 1 C.I. 14030
Properties
Molecular formula	C13H8N3NaO5 (Na salt) C13H9N3O5 (acid)
Molar mass	309.21 g mol−1 (Na salt) 287.23 g mol−1 (acid)

معرف تیمول فتالئین

Thymolphthalein
IUPAC name 3,3-bis(4-hydroxy-2-methyl- 5-propan-2-ylphenyl)- 2-benzofuran-1-one
Properties
Molecular formula	C28H30O4
Molar mass	430.53 g/mol
Appearance	White powder
Melting point	248 - 252 °C (decomp.)

معرف فنول فتالئین

Phenolphthalein
IUPAC name 3,3-bis(4-hydroxyphenyl)isobenzofuran-1(3H)-one
Properties
Molecular formula	C20H14O4
Molar mass	318.32 g mol−1
Density	1.277 g cm−3, at 32 °C
Melting point	260 °C
Boiling point	N/A
Solubility in water	Insoluble
Solubility in other solvents	Insoluble in benzene, very soluble in ethanol and ether, slightly soluble in DMSO

معرف متیل قرمز

Methyl red
Properties
Molecular formula	C15H15N3O2
Molar mass	269.3 g mol−1
Density	0.791 g/cm3
Melting point	179-182 °C, 452-455 K
http://en.wikipedia.org/wiki/PH_indicator

معرف برموکروزول سبز

Bromocresol green
IUPAC name 2,6-Dibromo-4-[7-(3,5-dibromo-4-hydroxy-2-methyl-phenyl)-9,9-dioxo-8-oxa-9λ6-thiabicyclo[4.3.0]nona-1,3,5-trien-7-yl]-3-methyl-phenol
Other names 3,3',5,5'-Tetrabromo-m- cresolsulfonphthalein
Properties
Molecular formula	C21H14Br4O5S
Molar mass	698.01 g mol−1
Supplementary data page
Thermodynamic data	Phase behaviour Solid, liquid, gas
Spectral data	UV, IR, NMR, MS
http://en.wikipedia.org/wiki/PH_indicator

معرف متیل اورانژ

Methyl orange
IUPAC name 4-dimethylaminoazobenzene-4'-sulfonic acid sodium salt
Other names p-dimethylamino-azobenzenesulfonic acid
Properties Molecular formula C14H14N3NaO3S Molar mass 327.33 g/mol Density 1.28 g/cm3, solid Melting point >300 °C (Not precisely defined.) Boiling point Decomposes. Solubility in water Soluble in hot water