89360
Thymolphthalein
ACS reagent
Synonym(s):
5′,5′′-Diisopropyl-2′,2′′-dimethylphenolphthalein
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About This Item
Empirical Formula (Hill Notation):
C28H30O4
CAS Number:
Molecular Weight:
430.54
UNSPSC Code:
12352200
NACRES:
NA.21
PubChem Substance ID:
EC Number:
204-729-7
Beilstein/REAXYS Number:
359413
MDL number:
grade
ACS reagent
Quality Segment
form
solid
technique(s)
UV/Vis spectroscopy: suitable, titration: suitable
ign. residue
≤1%
mp
248-254 °C, 251-253 °C (lit.)
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
General description
Thymolphthalien is an acid-base indicator which is colourless in acidic form and deep blue in basic form. Acidic form retains hydrogen on each hydroxyl group. It is suitable in preparing disappearing ink.
Application
Thymolphthalein was suitable as indicator during titration of hyamine hydroxide.
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Storage Class
11 - Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type N95 (US)
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