Thymol blue, AnalaR NORMAPUR® ACS, Reag. Ph. Eur. indicator
Supplier: VWR Chemicals
Synonyms:
Thymolsulphonphthalein, 3,3-Bis(4-hydroxy-5-isopropyl-2-methylphenyl)-3H-benzo[c][1,2]oxathiole 1,1-dioxide
VWRC86155.050EA
136
SGD
VWRC86155.050
VWRC86155.150
Thymol blue, AnalaR NORMAPUR® ACS, Reag. Ph. Eur. indicator
Thymol blue
Formula:
C₂₇H₃₀O₅S MW: 466,6 g/mol |
MDL Number:
MFCD00005869 CAS Number: 76-61-9 |
Specification Test Results
pH Range 1: Pink to Brownish Yellow | 1.2 - 2.8 |
pH Range 2: Greenish-Yellow to Blue | 8.0 - 9.2 |
Absorption Max. λ1 (pH 1.2) | 543 - 547 |
Absorption Max. λ2 (pH 2.8) | 431 - 436 |
Absorption Max. λ3 (pH 7.8) | 431 - 436 |
Absorption Max. λ4 (pH 9.5) | 594 - 598 |
Absorptivity (A1%/1 cm; λ1, pH 1.2 on Dried Sample) | 400 - 500 |
Absorptivity (A1%/1 cm; λ2, pH 2.8 on Dried Sample) | 200 - 300 |
Absorptivity (A1%/1 cm; λ3, pH 7.8 on Dried Sample) | 200 - 300 |
Absorptivity (A1%/1 cm; λ4, pH 9.5 on Dried Sample) | 450 - 550 |
Loss on Drying (110 ºC) | ≤3 |
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