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Bromopyrogallol red

Bromopyrogallol red structure

CAS No:
16574-43-9
Formula:
C19H10Br2O8S
Chemical Name:
Bromopyrogallol red
Synonyms:
Spiro[3H-2,1-benzoxathiole-3,9′-[9H]xanthene]-3′,4′,5′,6′-tetrol,2′,7′-dibromo-,1,1-dioxide;Bromopyrogallol red;Spiro[3H-2,1-benzoxathiole-3,9′-xanthene]-3′,4′,5′,6′-tetrol,2′,7′-dibromo-,1,1-dioxide;Pyrogallol bromine red;Brompyrogallol Red;NSC 315537;2′,7′-Dibromo-3′,4′,5′,6′-tetrahydroxyspiro[benzo[c][1,2]oxathiole-3,9′-xanthene] 1,1-dioxide;1528-73-0

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Description

green to dark brown crystalline powder

Bromopyrogallol red Basic Attributes

Molecular Weight：

558.15

Exact Mass：

558.15

EC Number：

240-632-6

NSC Number：

315537

DSSTox ID：

DTXSID0066082

HScode：

32041900

Characteristics

PSA：

142

XLogP3：

5.23130

Density：

2.39±0.1 g/cm3(Predicted)

Melting Point：

300 °C

Boiling Point：

681.2±55.0 °C(Predicted)

Flash Point：

365.8ºC

Water Solubility：

slightly soluble

Vapor Density：

19.2 (vs air)

Safety Information

hazard class code：

20/21/22-36/37/38

safety instructions：

24/25-22-36-26

Marks：

Precautionary statement(s)：

P273, P391, P501

Hazard Statements：

H411

GHS Classification：

|H411 (100%): Toxic to aquatic life with long lasting effects [Hazardous to the aquatic environment, long-term hazard]|P273, P391, and P501|The GHS information provided by 1 company from 1 notification to the ECHA C&L Inventory.

Bromopyrogallol red Use and Manufacturing

Methods of Manufacturing

It is derived from pyrogallol red by bromination. Suspend pyrogallol red in glacial acetic acid, heat to boiling, and add bromine acetic acid solution dropwise with stirring. After the reaction, it is cooled to room temperature, filtered, washed with glacial acetic acid to remove free bromine, dried, and recrystallized with a mixture of glacial acetic acid and acetone to obtain the finished product.

Uses

Used as color reagent for cobalt, nickel, thorium, niobium and other metals; complex titration indicator for rare earth metals.

Manufacturing Info：

Spiro[3H-2,1-benzoxathiole-3,9'-[9H]xanthene]-3',4',5',6'-tetrol, 2',7'-dibromo-, 1,1-dioxide: ACTIVE

Computed Properties

Molecular Weight:558.2
XLogP3:3.5
Hydrogen Bond Donor Count:4
Hydrogen Bond Acceptor Count:8
Exact Mass:557.84426
Monoisotopic Mass:555.84631
Topological Polar Surface Area:142
Heavy Atom Count:30
Complexity:756
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes

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Guide of Bromopyrogallol red

Description
Basic Attributes
Characteristics
Safety Information
Use and Manufacturing
Computed Properties
Learn More Other Chemicals

Bromopyrogallol red

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