Bromopyrogallol red
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Bromopyrogallol red
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CAS No:
16574-43-9
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Formula:
C19H10Br2O8S
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Chemical Name:
Bromopyrogallol red
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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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CAS No:
Characteristics
142
5.23130
2.39±0.1 g/cm3(Predicted)
300 °C
681.2±55.0 °C(Predicted)
365.8ºC
slightly soluble
19.2 (vs air)
Safety Information
20/21/22-36/37/38
24/25-22-36-26
Xn
P273, P391, P501
H411
|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
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.
Used as color reagent for cobalt, nickel, thorium, niobium and other metals; complex titration indicator for rare earth metals.
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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