BROMOPYROGALLOL RED
Bromopyrogallol Red
CAS: 16574-43-9
Molecular Formula: C19H10Br2O8S
BROMOPYROGALLOL RED - Names and Identifiers
| Name | Bromopyrogallol Red |
| Synonyms | Bromopyrogallol Bromopyrogallol Red BROMOPYROGALLOL RED 3,3'Dibromosulfongallein ROUGE DE BROMOPYROGALLOL DIBROMOPYROGALLOLSULFONPHTHALEINE 5,5-Dibromopyrogallolsulfonephthalein 5',5''-DIBROMOPYROGALLOLSULFONEPHTHALEIN spiro[3h-2,1-benzoxathiole-3,9'-[9h]xanthene]-3',4',5',6'-tetrol,2',7'-dibromo 2',7'-dibromospiro[2,1-benzoxathiole-3,9'-xanthene]-3',4',5',6'-tetrol 1,1-dioxide 2-[(E)-[(5S)-3-bromo-5-hydroxy-4,6-dioxocyclohex-2-en-1-ylidene](5-bromo-2,3,4-trihydroxyphenyl)methyl]benzenesulfonate alpha-(5-bromo-2,3-dihydroxy-4-oxo-2,5-cyclohexadienylidene)-alpha-(5-bromo-2,3,4-trihydroxyphenyl)toluenesulphonic acid 2-[(Z)-(3-bromo-4,5-dihydroxy-6-oxocyclohexa-2,4-dien-1-ylidene)(5-bromo-2,3,4-trihydroxyphenyl)methyl]benzenesulfonic acid |
| CAS | 16574-43-9 |
| EINECS | 240-632-6 |
| InChI | InChI=1/C19H12Br2O9S/c20-10-5-8(14(22)18(26)16(10)24)13(7-3-1-2-4-12(7)31(28,29)30)9-6-11(21)17(25)19(27)15(9)23/h1-6,18,23,25-27H,(H,28,29,30)/p-1/b13-8-/t18-/m0/s1 |
BROMOPYROGALLOL RED - Physico-chemical Properties
| Molecular Formula | C19H10Br2O8S |
| Molar Mass | 558.15 |
| Density | 2.39±0.1 g/cm3(Predicted) |
| Melting Point | 300 °C |
| Boling Point | 681.2±55.0 °C(Predicted) |
| Water Solubility | slightly soluble |
| Vapor Density | 19.2 (vs air) |
| Appearance | Black crystalline powder |
| Color | Reddish brown |
| pKa | 6.63±0.20(Predicted) |
| Storage Condition | 2-8°C |
| MDL | MFCD00148865 |
| Physical and Chemical Properties | Red-brown powder. Melting point 300 ℃, soluble in alcohol, red solution, slightly soluble in water. |
| Use | Used as a developer for cobalt, nickel, thorium, niobium and other metals; a complexometric titration indicator for rare earth metals. |
BROMOPYROGALLOL RED - Risk and Safety
| Hazard Symbols | Xn - Harmful |
| Risk Codes | R20/21/22 - Harmful by inhalation, in contact with skin and if swallowed. R36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | S24/25 - Avoid contact with skin and eyes. S22 - Do not breathe dust. S36 - Wear suitable protective clothing. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. |
| TSCA | Yes |
| HS Code | 32041900 |
BROMOPYROGALLOL RED - Reference
| Reference Show more | 1. [IF=7.46] Rui Liu et al."Visual classification for sesame oil adulteration detection and quantification of compounds used as adulterants using flavor compounds targeted array sensor in combination with DD-SIMCA and PLS."Sensor Actuat B-Chem. 2022 Apr;357:131335 |
BROMOPYROGALLOL RED - Introduction
Soluble in alcohol, the solution is red, slightly soluble in water.
Last Update：2022-10-16 17:14:15
BROMOPYROGALLOL RED - Reference Information
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| use | analytical reagent, complexometric titration indicator. Used as a developer for cobalt, nickel, thorium, niobium and other metals; a complexometric titration indicator for rare earth metals. |
| Production method | It is obtained by bromination of pyrogallol red. Pyrogallol red is suspended in glacial acetic acid, heated to boiling, and stirred to drop the bromine acetic acid solution. After the reaction, cool to room temperature, filter, wash free bromine with glacial acetic acid, dry, and recrystallize with a mixture of glacial acetic acid and acetone to obtain the finished product. |
Last Update：2024-04-09 20:49:11
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