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Thymolphthalein

indicator
ACS,Reag. Ph Eur.
CAS 125-20-2,
molar mass 430.54 g/mol
Code: 1081750025
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indicator ACS,Reag. Ph Eur. CAS 125-20-2, molar mass 430.54 g/mol

Key Spec Table

CAS #EC NumberHill FormulaMolar MassGrade Value
125-20-2 204-729-7 C₂₈H₃₀O₄ 430.54 g/mol ACS,Reag. Ph Eur
Description
Catalogue Number 108175
Product Information
CAS number 125-20-2
EC number 204-729-7
Grade ACS,Reag. Ph Eur
Hill Formula C₂₈H₃₀O₄
Molar Mass 430.54 g/mol
HS Code 2932 20 90
Structure formula Image
Applications
Application Thymolphthalein indicator ACS,Reag. Ph Eur. CAS 125-20-2, molar mass 430.54 g/mol. MSDS and product information below.
Physicochemical Information
Melting Point 253 °C
Bulk density 400 kg/m3
Safety Information according to GHS
Storage class 10 - 13 Other liquids and solids
WGK WGK 2 water endangering
Disposal 3
Relatively unreactive organic reagents should be collected in container A. If halogenated, they should be collected in container B. For solid residues use container C.
Storage and Shipping Information
Storage Storage temperature: no restrictions.
Specifications
Appearance White to almost white powder, eventually slightly yellowish.
Identity (UV/VIS-Spectrum) passes test
Absorption maximum λmax. (buffer pH 10.5) 592 - 596 nm
Spec. Absorptivity A 1%/1cm (λmax; 0.01 g/l; buffer pH 10.5; calculated on anhydrous substance) 800 - 900
Transition range (according to ACS) passes test
Transition range pH 9.0 - pH 10.5 colourless - blue
Loss on drying (110 °C) ≤ 1 %
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