Thymolphthalein

SIAL/114553 - ACS reagent, Dye content 95 %

Synonym: 5′,5′′-Diisopropyl-2′,2′′-dimethylphenolphthalein

CAS Number: 125-20-2
Empirical Formula (Hill Notation): C₂₈H₃₀O₄
Molecular Weight: 430.54
EC Number: 204-729-7
MDL Number: MFCD00005909
Linear Formula: C₂₈H₃₀O₄
Product Type: Chemical

Catalog Number	PKG Qty.	Price	Quantity


45-114553-10G	10 g	$38.80 1/EA		Add To Favorites
45-114553-50G	50 g	$124.00 1/EA		Add To Favorites

Properties
Descriptions
Safety Info.
Basic Data

λ_max	396 nm (2nd)
	592 nm
clarity of soln	passes test
composition	Dye content, 95%
form	solid
grade	ACS reagent
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
mp	251-253 °C (lit.)
Quality Level	200
SMILES string	CC(C)c1cc(c(C)cc1O)C2(OC(=O)c3ccccc23)c4cc(C(C)C)c(O)cc4C
technique(s)	titration: suitable
visual transition interval	8.8-10.5, colorless to blue

Application:	Thymolphthalein has been used as a pH indicator in [¹⁴C] urea breath test to determine when the CO₂trap is full.
General description:	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.
Packaging:	10, 50 g in poly bottle

RIDADR	NONH for all modes of transport
WGK Germany	WGK 3
Flash Point(F)	Not applicable
Flash Point(C)	Not applicable

mp	251-253 °C (lit.)
UNSPSC	12171500

Choose a favorite list for this item:

Catalog Number	Description	Price

		$

Please choose a list :

Continue Shopping

Returns/Order support

Please fill out the form below if you want to request order support from Krackeler Scientific.