Bromocresol Purple
Also known as: Bromcresol Purple, Bromcresol purple sultone form, 3',3''-DIBROMO-O-CRESOLSULFONPHTHALEIN, 3,3-Bis(3-bromo-4-hydroxy-5-methylphenyl)-3H-benzo[c][1,2]oxathiole 1,1-dioxide, 4,4'-(1,1-Dioxido-3H-2,1-benzoxathiole-3,3-diyl)bis(2-bromo-6-methylphenol), 4,4'-(3H-2,1-Benzoxathiol-3-ylidene)bis[2-bromo-6-methylphenol] S,S-Dioxide, 5,5'-DIBROMO-O-CRESOLSULFONPHTHALEIN, BCP, Phenol, 4,4'-(1,1-dioxido-3H-2,1-benzoxathiol-3-ylidene)bis(2-bromo-6-methyl-, MFCD00011681, EINECS 204-087-8
Bromocresol Purple (CAS 115-40-2) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C21H16Br2O5S and a molecular weight of 540.222 g/mol. Key properties include a melting point of 240 °C (dec.)(lit.), a boiling point of 590.2±50.0 °C at 760 mmHg, a density of 1.8±0.1 g/cm3 and a flash point of 310.7±30.1 °C. It is listed by 1 supplier; request a quote for pricing. Record last updated Aug 21, 2026.
- CAS No.
- 115-40-2
- Jingsj CID
- J-33195-1
- Molecular Formula
- C21H16Br2O5S
- Molecular Weight
- 540.222 g/mol
- Category
- Alcohols
- Last updated
- 8/21/2026
| Supplier | Purity / Pack | Base Price | Unit Price | Origin | |
|---|---|---|---|---|---|
Made to Order | - | - | CN China |
Physicochemical Properties
| Melting Point | 240 °C (dec.)(lit.) |
|---|---|
| Boiling Point | 590.2±50.0 °C at 760 mmHg |
| Density | 1.8±0.1 g/cm3 |
| Flash Point | 310.7±30.1 °C |
| Exact Mass | 537.908508 |
| PSA | 92.21000 |
| LogP | 5.92 |
| Vapor Pressure | 0.0±1.7 mmHg at 25°C |
| Refractive Index | 1.695 |
| Additional Property | practically insoluble |
Customs & Trade Information
| HS Code | 2934991000 |
|---|---|
| Summary | 2934991000. sultones and sultams. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of Bromocresol Purple?
The CAS number of Bromocresol Purple is 115-40-2.
What are the molecular formula and molecular weight of Bromocresol Purple?
Bromocresol Purple has molecular formula C21H16Br2O5S and molecular weight 540.222 g/mol.
Which suppliers offer Bromocresol Purple?
1 supplier(s) listed; request a quote for pricing.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Bromocresol Purple (CAS 115-40-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-33195-1 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.