Home Categories Biochemical Engineering Thymolphthalein
A7669112

Thymolphthalein , indicator , 125-20-2

Synonym(s):
5′,5′′-Diisopropyl-2′,2′′-dimethylphenolphthalein;Thymolphthalein

CAS NO.:125-20-2

Empirical Formula: C28H30O4

Molecular Weight: 430.54

MDL number: MFCD00005909

EINECS: 204-729-7

Pack Size Price Stock Quantity
5G RMB24.80 In Stock
25G RMB49.60 In Stock
100G RMB148.80 In Stock
500g RMB568.80 In Stock
others     Enquire
Update time: 2022-07-08

PRODUCT Properties

Melting point: 251-253 °C(lit.)
Boiling point: 504.79°C (rough estimate)
Density  0.92 g/mL at 25 °C
vapor pressure  0.002Pa at 90℃
refractive index  1.6400 (estimate)
Flash point: 74 °F
storage temp.  no restrictions.
solubility  ethanol: clarity passes test
form  Low Melting Mass
pka 9.70, 10.0(at 25℃)
color  White to slightly yellow
Specific Gravity 0.92
PH 8.6~10.5
Odor Mild characteristic odor
PH Range 9.3(colourless)-10.5(blue)
explosive limit 3.30-19%
Water Solubility  insoluble
λmax 592nm, 396nm, 598nm
Merck  14,9401
BRN  359413
Major Application Display device, semiconductors, recording materials, photoconductors, sol-gel matrix, tin electroplating process, counterfeit-proof paper, authentication system forsecure documents, inks, pencil leads, correction fluid, paints, petroleum marker, tennis ball, adhesives, floor coatings, textiles, detergents, insecticide, lotion, cleaning pads, food storage, determine bacterial growth, Streptococci in saliva, dental impressionmaterials
InChIKey GRBHJPCWQRVGND-UHFFFAOYSA-N
LogP 3.682 at 25℃

Description and Uses

Thymolphthalein is a pH sensitive dye that has multiple uses such as testing hydration and/or saliva testing.

Safety

Symbol(GHS) 
GHS02,GHS08
Signal word  Danger
Hazard statements  H225-H313-H333-H371
Precautionary statements  P210-P260-P280a-P303+P361+P353-P405-P501a
Hazard Codes  F,Xn
Risk Statements  11-40-10
Safety Statements  7-16-36/37-24/25-22
RIDADR  UN 1170 3/PG 3
WGK Germany  3
TSCA  Yes
HazardClass  3
PackingGroup  II
HS Code  29322980

RELATED PRODUCTS