Name | Bromophenol Blue |
Synonyms | BPB Bromophenol Blue Bromophenol blue solution tetrabromophenolsulphonephthalein Tetrabromophenoltetrabromosulfonephthalein 4,4'-(1,1-dioxido-3H-2,1-benzoxathiole-3,3-diyl)bis(2,6-dibromophenol) disodium 3,3'-(4,5,6,7-tetrabromo-3-oxo-1,3-dihydro-2-benzofuran-1,1-diyl)bis(6-hydroxybenzenesulfonate) |
CAS | 115-39-9 |
EINECS | 204-086-2 |
InChI | InChI=1/C19H10Br4O5S/c20-12-5-9(6-13(21)17(12)24)19(10-7-14(22)18(25)15(23)8-10)11-3-1-2-4-16(11)29(26,27)28-19/h1-8,24-25H |
Molecular Formula | C19H10Br4O5S |
Molar Mass | 669.96 |
Density | 2.199g/cm3 |
Melting Point | 273℃ |
Boling Point | 605.6°C at 760 mmHg |
Flash Point | 320.1°C |
Vapor Presure | 2.92E-15mmHg at 25°C |
Appearance | Pale pink to purple crystalline powder |
Storage Condition | Room Temprature |
Sensitive | Easily absorbing moisture |
Refractive Index | 1.743 |
MDL | MFCD00005875 |
Use | Used as acid-base indicator |
Safety Description | S22 - Do not breathe dust. S24/25 - Avoid contact with skin and eyes. |
Reference Show more | 1. Liang Hongxuan, Liu Xinxin, Bai Jialei, et al. Aptamer fluorescence sensor based on multicolor upconversion nanomaterials for detection of three hormone pollutants [J]. PLA Journal of Preventive Medicine, 2020(2). 2. Zhang Zhaoyun, Zhou Qiping, Gong Qifu, Zhao Baotang, Shang Qi, Zhang Zhihua, yang Fumin. Optimization of Extraction Process and Determination of Antioxidant Activity of Quinoa Seed Albumin from "Longli No.1" [J]. Food and Fermentation Industry, 2021,47(02):212-219. 3. Li, Wei, Xin Dong, and Jian Zhao. "MiR-28-3p enhances healing of fracture via negative regulation of the target gene Sox6 and activation of PI3K/Akt signaling pathway." Tropical Journal of Pharmaceutical Research 19.10 (2020): 2061-2066. 10.4314/tjpr.v19i1 4. [IF = 5.396] Shufen Wu et al."The noncovalent conjugations of human albumin (HSA) with MS/AK and the effect on anti-oxidant capacity as well as anti-glycation activity of Monascus yellow pigments." Food Function. 2021 Apr;12(8):3692-3704 5. [IF = 0.533] Wei Li et al."MiR-28-3p enhances healing of fracture via negative regulation of the target gene Sox6 and activation of PI3K/Akt signaling pathway." Trop J Pharm Res. 2020 Nov;19(10): 2061-2066 6. [IF = 4.952] Ruyi Li et al."Enhancing the proportion of gluconic acid with a microbial community reconstruction method to improve the taste quality of Kombucha." Lwt Food Sci Technol. 2022 Feb;155:112937 |
long hexagonal rhombic crystals or powders. 279 degrees C decomposition. Soluble in sodium hydroxide solution and the formation of aqueous sodium salt, soluble in ethanol, ether, benzene, slightly soluble in water (100mL water about 0.4g of the product).
phenol red was dissolved in glacial acetic acid, heated to boiling, Dropwise added bromine solution in glacial acetic acid, yellow solid precipitation, filtered, washed with acetic acid to remove free bromine, the crude product was obtained after drying in air. With glacial acetic acid or acetone and glacial acetic acid mixed solvent recrystallization, pure bromophenol blue.
acid-base indicator.