THYMOLPHTHALEIN, A.C.S. REAGENT 10 G

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THYMOLPHTHALEIN, A.C.S. REAGENT 10 G

THYMOLPHTHALEIN, A.C.S. REAGENT 10 G

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THYMOLPHTHALEIN, A.C.S. REAGENT 10 G

Brands: SIGMA-ALDRICH

Rp 1.110.000

Thymolphthalein (5′, 5′′-Diisopropyl-2′, 2′′-dimethylphenolphthalein) is an acid-base indicator which is colorless in solutions with a pH below 8.5 and blue in solutions with a pH above 9.5. Thymolphthalein has been used as an indicator in periodate-thiosulfate reaction.

SKU: 114553-10G
Categories: Reagent Chemical, Reagent
Tags: REAGENT CHEMICAL, SIGMA-ALDRICH, REAGENT
Availability: In stock

Description

grade

ACS reagent

Quality Level

form

solid

composition

Dye content, 95%

clarity of soln

passes test

technique(s)

titration: suitable

visual transition interval

8.8-10.5, colorless to blue

mp

251-253 °C (lit.)

λ_max

396 nm (2nd)
592 nm

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