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Merck

30-2290

Thymolphthalein

JIS special grade

Synonym(s):

5′,5′′-Diisopropyl-2′,2′′-dimethylphenolphthalein

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About This Item

Empirical Formula (Hill Notation):
C28H30O4
CAS Number:
125-20-2
Molecular Weight:
430.54
PubChem Substance ID:
329753351
UNSPSC Code:
12171502
Beilstein/REAXYS Number:
359413
MDL number:
MFCD00005909

Key Documents

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Product Name

Thymolphthalein, JIS special grade

SMILES string

CC(C)c1cc(c(C)cc1O)C2(OC(=O)c3ccccc23)c4cc(C(C)C)c(O)cc4C

InChI

1S/C28H30O4/c1-15(2)20-13-23(17(5)11-25(20)29)28(22-10-8-7-9-19(22)27(31)32-28)24-14-21(16(3)4)26(30)12-18(24)6/h7-16,29-30H,1-6H3

InChI key

LDKDGDIWEUUXSH-UHFFFAOYSA-N

grade

JIS special grade

form

solid

availability

available only in Japan

mp

251-253 °C (lit.)

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Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

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Certificates of Analysis (COA)

Lot/Batch Number
U7352
U7943
U2672
U5946
U4525

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Y Tsuda et al.
The Japanese journal of antibiotics, 46(1), 1-7 (1993-01-01)
We presented a new colorimetric bioassay of aminoglycoside antibiotics, which were represented by netilmicin (NTL) in this study, based on the discoloration of thymolphthalein (TP) in paper (indicator-disc) by carbon dioxide produced by Bacillus subtilis. To evaluate the amount of
Ali Babaei et al.
Analytical sciences : the international journal of the Japan Society for Analytical Chemistry, 22(7), 955-959 (2006-07-14)
A novel, sensitive and selective adsorptive stripping procedure for simultaneous determination of copper, bismuth and lead is presented. The method is based on the adsorptive accumulation of thymolphthalexone (TPN) complexes of these elements onto a hanging mercury drop electrode, followed
S Passamonti et al.
Biochimica et biophysica acta, 943(2), 119-125 (1988-08-18)
Sulfobromophthalein electrogenic uptake into rat liver plasma membrane vesicles was shown to admit only the quinoid, trivalent anion. The minimum requirement for this electrogenic process has been investigated in rat liver plasma membrane vesicles by using Thymol blue, a pH-indicator
Douglas R Macfarlane et al.
Chemical communications (Cambridge, England), 46(41), 7703-7705 (2010-09-28)
We describe hydrated ionic liquids which have an intrinsic proton buffering action and hence an ability to control proton activity in an ionic medium.
N Gayathri et al.
Journal of AOAC International, 84(4), 1065-1069 (2001-08-15)
A simple and sensitive spectrophotometric method was developed for the determination of trace amounts of sulfur dioxide. The method is based on the reaction of SO2 with a known excess of ICI as the oxidant. The unreacted ICI iodinates thymol
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