Thymolphthalein CAS 125-20-2
Appearance: White crystalline
Molecular Formula: C28H30O4
Package: 25kg fiber drum
Sample:? Available
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COA of Thymolphthalein 125-20-2
TDS of Thymolphthalein 125-20-2
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Description
Thymolphthalein
Thymolphthalein?Product Information
CAS No: 125-20-2
Molecular Formula??C28H30O4
Molecular Weight??430.54
Molecular Structure:
?
Thymolphthalein Specification
Item
Specifications
Appearance
White crystalline
PH 9.3-10.5
9.3(colourless)-10.5(blue)
Melting point
251.0-255.0??
Ethanol Dissolution
/
sodium hydroxide Dissolution
/
Residue on Ignition(as sulfate)
??0.1%
?
Thymolphthalein Usage
Thymolphthalein is sed as acid-base indicator, reagent for blood test, chromatographic analysis.
Thymolphthalein Package
Regular package: 25kg fiber drum.
Thymolphthalein Storage
Keep in in a cool and dry warehouse inside. Away from fire and heat.
Handle with care, and maintain the integrity of the packaging.
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HEPES buffer(4 ?C (2-hydroxyethyl) ?C 1-piperazine ethanesulfonic acid) is a zwitterionic sulfonic acid buffer; One of good??s 20 buffers. Hepes buffer is widely used in cell culture, mainly because it can maintain physiological pH value better than bicarbonate buffer, which is also commonly used in cell culture, although the concentration of carbon dioxide (produced by aerobic respiration) changes. Lepe Zuniga et al. An unwanted photochemical process in which hepes buffer produces hydrogen peroxide when exposed to ambient light is reported, which is not a problem in bicarbonate based cell culture buffer. Therefore, it is strongly recommended to place the solution containing hepes buffer in the dark as far as possible to prevent oxidation.
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