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Tetrabromophenolphthalein sodium salt is a chemical compound with the formula C20H10Br4Na2O5, commonly used as a pH indicator. It is a yellow crystalline solid that turns blue in alkaline solutions, making it useful for determining the pH of a solution. TETRABROMOPHENOLPHTHALEIN SODIUM SALT is derived from phenolphthalein, a colorless compound that turns pink in basic solutions, by substituting four hydrogen atoms with bromine atoms. Tetrabromophenolphthalein sodium salt is sensitive to changes in pH, particularly in the range of 8.2 to 10.0, where it exhibits a color change from yellow to blue. It is widely used in laboratories, educational settings, and industrial applications for pH testing and titration processes.

1301-21-9

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1301-21-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1301-21-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,3,0 and 1 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1301-21:
(6*1)+(5*3)+(4*0)+(3*1)+(2*2)+(1*1)=29
29 % 10 = 9
So 1301-21-9 is a valid CAS Registry Number.
InChI:InChI=1/C20H10Br4O4.2Na/c21-15-13-14(16(22)18(24)17(15)23)20(28-19(13)27,9-1-5-11(25)6-2-9)10-3-7-12(26)8-4-10;;/h1-8,25-26H;;/q;2*+1/p-2

1301-21-9SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 20, 2017

Revision Date: Aug 20, 2017

1.Identification

1.1 GHS Product identifier

Product name TETRABROMOPHENOLPHTHALEIN SODIUM SALT

1.2 Other means of identification

Product number -
Other names 3,3-bis(p-hydroxyphenyl)isobenzofuran-1(3H)-one,tetrabromo derivative,disodium salt

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:1301-21-9 SDS

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