| Identification | More | [Name]
Thymol Blue | [CAS]
76-61-9 | [Synonyms]
LABOTEST-BB LT00454334
PHYMOLSULFONPHTHALEIN
S NO 879
TB
THYMOL BLUE
THYMOL BLUE ETHANOL (50)
THYMOL BLUE INDICATOR SOLUTION
THYMOL BLUE TS
THYMOLSULFONEPHTHALEIN
THYMOLSULFONPHTHALEIN
4,4’-(3h-2,1-benzoxathiol-3-ylidene)bis(5-methyl-2-(1-methylethyl)-pheno
4,4’-(3h-2,1-benzoxathiol-3-ylidene)bis(5-methyl-2-(1-methylethyl)phenols,s-di
6,6’-(3h-2,1-benzoxathiol-3-ylidene)dithymols,s-dioxide
bleudethymol
Phenol, 4,4'-(3H-2,1-benzoxathiol-3-ylidene)bis[5-methyl-2-(1-methylethyl)-, S,S-dioxide
Phenol,4,4’-(3H-2,1-benzoxathiol-3-ylidene)bis(5-methyl-2-(1-methylethyl)-,S,S-dioxide
s-dioxide
Thymol, 6,6'-(3H-2,1-benzoxathiol-3-ylidene)di-, S,S-dioxide
thymol,6,6’-(3h-2,1-benzoxathiol-3-ylidene)di-,s,s-dioxide
Thymolsulfonephalein | [EINECS(EC#)]
200-973-3 | [Molecular Formula]
C27H30O5S | [MDL Number]
MFCD00005869 | [Molecular Weight]
466.59 | [MOL File]
76-61-9.mol |
| Chemical Properties | Back Directory | [Appearance]
brown to green powder or crystals | [Melting point ]
221-224 °C (dec.) (lit.) | [Boiling point ]
539.4°C (rough estimate) | [density ]
1.1413 (rough estimate) | [refractive index ]
1.5300 (estimate) | [Fp ]
36 °C | [storage temp. ]
Store at RT. | [solubility ]
0.11g/l | [form ]
Solid | [pka]
Pka1:1.65(at 25℃)(PH=1.2 to 2.8) Pka2:8.9(at 25℃)(PH=8.0 to 9.6) | [color ]
Dark green to dark brown | [Odor]
Characteristic odour | [PH Range]
1.2(red)-2.8(yellow) 8(yellow)-9.6(blue) | [Stability:]
Stable. Combustible. Dust may form an explosive mixture with air. Incompatible with strong oxidizing agents. | [Water Solubility ]
Soluble in alcohol and dilute alkali solutions. Insoluble in water. | [λmax]
594nm, 376nm, 544nm, 430nm | [Merck ]
14,9400 | [BRN ]
368036 | [Major Application]
Display device, semiconductors, sensors, fuel cells, antimisting coating for glass, toys, corrosion inhibitor, multi-level alert system, correction fluid, textiles, falsification-proof security paper, packaging system, measurement of hydrogen ion concentrationin swimming pool water, humidity-indicating agent, diapers, cosmetics, biostatic materials, determine bacteria growth, psychoactive drugs, antidepressant drugs, dental impression material | [CAS DataBase Reference]
76-61-9(CAS DataBase Reference) | [NIST Chemistry Reference]
Thymolsulfonephthalein(76-61-9) | [EPA Substance Registry System]
76-61-9(EPA Substance) |
| Safety Data | Back Directory | [Risk Statements ]
R10:Flammable. | [Safety Statements ]
S24/25:Avoid contact with skin and eyes . | [RIDADR ]
UN 1170 3/PG 3 | [WGK Germany ]
3 | [RTECS ]
XP2575000 | [TSCA ]
Yes | [PackingGroup ]
II | [HS Code ]
29147000 |
| Hazard Information | Back Directory | [Chemical Properties]
brown to green powder or crystals | [Uses]
As as acid-base indicator; pH: red 1.2 to yellow 2.8; also yellow 8.0 to blue 9.6. | [Biochem/physiol Actions]
Thymol Blue is a pH indicator, which is yellow/orange at low pH and blue in color at high pH. |
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