Bromocresol green
- CAS No.
- 76-60-8
- Chemical Name:
- Bromocresol green
- Synonyms
- Green;BCG;BROMCRESOL GREEN;BROMOCRESOL BLUE;BROMOCRESOL GREEN INDICATOR;BROMOCRESOL GREEN SULTONE FORM;BACILLUS OF CALMETTE AND GUERIN;γ-Sultone;vertdebromocresol;tetrabromo-m-cresolphthaleinsulfone
- CBNumber:
- CB9447060
- Molecular Formula:
- C21H14Br4O5S
- Molecular Weight:
- 698.01
- MDL Number:
- MFCD00005874
- MOL File:
- 76-60-8.mol
- MSDS File:
- SDS
- TDS File:
- TDS
| Product description | Number | Pack Size | Price |
| Bromocresol Green Sultone Form for microscopy (Bot., Hist., Vit.), indicator (pH 3.8-5.4) | 17470 | 5G | $66.8 |
| Bromocresol Green Sultone Form for microscopy (Bot., Hist., Vit.), indicator (pH 3.8-5.4) | 17470 | 25g | $254 |
| Bromocresol Green ACS reagent, Dye content 95% | 114359 | 5g | $59.7 |
| Bromocresol Green ACS reagent, Dye content 95% | 114359 | 25g | $228 |
| Bromocresol green indicator ACS,Reag. Ph Eur | 1.08121 | 1g | $230 |
| More product size | |||
| Melting point | 225 °C (dec.) (lit.) |
|---|---|
| Density | 0.79 g/mL at 20 °C |
| bulk density | 350kg/m3 |
| Flash point | 12 °C |
| storage temp. | no restrictions. |
| solubility | Solubility Sparingly soluble in water; soluble in ethanol, ether, ethyl acetate |
| form | Powder/Solid |
| pka | 4.7(at 25℃) |
| Boiling point | 626.0±55.0 °C(Predicted) |
| color | Pale orange |
| PH Range | 3.8(YELLOW)-5.4(BLUE) |
| PH | 3.8～5.4 |
| Water Solubility | slightly soluble |
| λmax | 423nm, 444nm, 617nm |
| Merck | 14,1386 |
| BRN | 372527 |
| Henry's Law Constant | 1.5×1013 mol/(m3Pa) at 25℃, Zhang et al. (2010) |
| Stability | Stable. Incompatible with strong oxidizing agents. |
| Major Application | Sol-gel matrix, fuel cells, sensors, display device, inks, paints, one-steptester for ammonia, cosmet-tester for ammonia, packaging system, textiles, cleansing products, detergents, cosmetics, diapers, identifying fresh and stale rice, monitoring fish spoilage, detecting carbohydrates, lacting acid bacteria, treating neoplasms, cancer, vaginal infection test method, drugs, dental materials |
| Cosmetics Ingredients Functions | COLORANT |
| InChI | 1S/C21H14Br4O5S/c1-9-12(7-14(22)19(26)17(9)24)21(13-8-15(23)20(27)18(25)10(13)2)11-5-3-4-6-16(11)31(28,29)30-21/h3-8,26-27H,1-2H3 |
| InChIKey | FRPHFZCDPYBUAU-UHFFFAOYSA-N |
| SMILES | Cc1c(Br)c(O)c(Br)cc1C2(OS(=O)(=O)c3ccccc23)c4cc(Br)c(O)c(Br)c4C |
| LogP | 7.800 (est) |
| CAS DataBase Reference | 76-60-8(CAS DataBase Reference) |
| NCI Dictionary of Cancer Terms | BCG |
| FDA UNII | 8YGN0Y942M |
| EPA Substance Registry System | Bromcresol green (76-60-8) |
| UNSPSC Code | 41116100 |
| NACRES | NB.21 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |    GHS02,GHS07,GHS08 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Danger | |||||||||
| Hazard statements | H319-H360-H372-H373-H340-H350-H335-H336-H225 | |||||||||
| Precautionary statements | P501-P270-P202-P240-P260-P210-P233-P201-P243-P241-P242-P271-P264-P280-P370+P378-P308+P313-P337+P313-P305+P351+P338-P303+P361+P353-P304+P340+P312-P403+P233-P403+P235-P405 | |||||||||
| PPE | Eyeshields, Gloves, type N95 (US) | |||||||||
| Hazard Codes | F,Xi,Xn | |||||||||
| Risk Statements | 11-36-67-36/37/38-20/21/22 | |||||||||
| Safety Statements | 7-16-24/25-26-37/39-36 | |||||||||
| RIDADR | UN 1219 3/PG 2 | |||||||||
| WGK Germany | 3 | |||||||||
| RTECS | SJ7456000 | |||||||||
| Autoignition Temperature | 399 °C | |||||||||
| TSCA | TSCA listed | |||||||||
| HazardClass | 3 | |||||||||
| PackingGroup | II | |||||||||
| HS Code | 29349990 | |||||||||
| Storage Class | 11 - Combustible Solids | |||||||||
| NFPA 704 |
|
Bromocresol green price More Price(99)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | 17470 | Bromocresol Green Sultone Form for microscopy (Bot., Hist., Vit.), indicator (pH 3.8-5.4) | 76-60-8 | 5G | $66.8 | 2026-04-30 | Buy |
| Sigma-Aldrich | 17470 | Bromocresol Green Sultone Form for microscopy (Bot., Hist., Vit.), indicator (pH 3.8-5.4) | 76-60-8 | 25g | $254 | 2026-04-30 | Buy |
| Sigma-Aldrich | 114359 | Bromocresol Green ACS reagent, Dye content 95% | 76-60-8 | 5g | $59.7 | 2026-04-30 | Buy |
| Sigma-Aldrich | 114359 | Bromocresol Green ACS reagent, Dye content 95% | 76-60-8 | 25g | $228 | 2026-04-30 | Buy |
| Sigma-Aldrich | 1.08121 | Bromocresol green indicator ACS,Reag. Ph Eur | 76-60-8 | 1g | $230 | 2026-04-30 | Buy |
Bromocresol green Chemical Properties,Uses,Production
Chemical Properties
tan to yellow crystals
Uses
Bromocresol Green (BCG) is a pH sensitive triphenylmethane dye useful in a variety of colorimetric detection technologies. BCG is used as a tracking dye for DNA agarose gel electrophoresis, in protein determinations and in charge-transfer complexation processes. In TLC BCG is used for visualisation of the compounds with functional groups whose pKa is below 5.0.
Uses
Bromocresol Green is a pH sensitive indicator used in the growth medium for microorganisms and titrations. It is useful in various colorimetric detection studies and as an actively tracking dye for DNA agarose gel electrophoresis. It acts as an inhibitor of prostaglandin E2 transport protein. It is also used in TLC for visualizing compounds containing functional groups having pKa less than 5.
Uses
As indicator, pH 3.8 yellow; pH 5.4 blue-green.
Definition
ChEBI: Bromocresolgreen is a member of benzofurans.
Hazard
Moderately toxic.
Synthesis
A method of preparing bromocresol green in the following steps:
(1) 1.5 kg of bromine is dissolved in 1.25 liters of glacial acetic acid solution to obtain a bromine-glacial acetic acid mixture;
(2) 2 kg of pure m-cresol violet is dissolved in a solution of 2.5 liters of glacial acetic acid;
(3) The bromine-ice acetic acid mixture obtained in step (1) is slowly dripped into the solution in step (2) at a temperature not exceeding 80 C. After addition, stirring is continued and kept at 80 to 90 C. for 24 hours, and then filtered after cooling down, and the precipitate is washed twice with ice acetic acid, dried or pumped, and dried at 50 to 60 C. to obtain the crude bromocresol green. Moreover, the crude bromocresol green was recrystallized with benzene or glacial acetic acid to obtain pure bromocresol green, which crystallized into white, melting point 218-9C.
Purification Methods
Crystallise the dye from glacial acetic acid or dissolve it in aqueous 5% NaHCO3 solution and precipitate it from the hot solution by dropwise addition of aqueous HCl. Repeat this until the UV/VIS-extinction did not increase 423nm. It is an indicator: at pH 3.81 at max (yellow) and pH 5.4 (blue-green). [Beilstein 19/3 V 460.]
Bromocresol green Preparation Products And Raw materials
Raw materials
Preparation Products
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Jiangsu Boquan Biotechnology Co., Ltd. | +86-18168774353 | boquanshengwu003@boquansw.com | China | 248 | 58 |
| Shenyang Simchoice Chemical Co.,Ltd | +86-024-23769576 +86-15040101888 | sales@simchoicechem.com | China | 254 | 58 |
| Hebei Chuanghai Biotechnology Co., Ltd | +8615350571055 | Sibel@chuanghaibio.com | China | 8738 | 58 |
| Shaanxi Dideu Medichem Co. Ltd | +8617392709771 | 1097@dideu.com | China | 3993 | 58 |
| Wuhan Fortuna Chemical Co., Ltd | +86-27-59207850 | info@fortunachem.com | China | 5995 | 58 |
| Hebei Chuanghai Biotechnology Co,.LTD | +86-86-13131129325 +8613131129325 | sales1@chuanghaibio.com | China | 5220 | 58 |
| Shaanxi Didu New Materials Co. Ltd | +86-86-17392712779 +8617792793228 | 1090@dideu.com | China | 8660 | 58 |
| Hebei Jingbo New Material Technology Co., Ltd | +8619931165850 | hbjbtech@163.com | China | 1000 | 58 |
| Hebei Longbang Technology Co., LTD | +86-18633929156 | admin@hblongbang.com | China | 972 | 58 |
| HebeiShuoshengImportandExportco.,Ltd | +86-18532138899 | L18532138899@163.com | China | 939 | 58 |
Related articles
- Bromocresol Green-Based Optimized Colorimetric Sensors for Albumin and Atropine
- Bromocresol green is a pH-sensitive triphenylmethane dye commonly used for the determination of protein and albumin in serum.
- Jun 22，2026
Related Qustion
Ask a questionView Lastest Price from Bromocresol green manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2026-07-25 | Bromocresol green
76-60-8
|
0.99 | RongNa Biotechnology Co.,Ltd | ||||
 |
2026-07-24 | Bromocresol green
76-60-8
|
$666.00-999.00 | 1kg | 99% | 5000 | HEBEI SHENGSUAN CHEMICAL INDUSTRY CO.,LTD | |
 |
2026-07-24 | Bromocresol green
76-60-8
|
1KG | 99% | 1000kg | WUHAN FORTUNA CHEMICAL CO., LTD |
-
- Bromocresol green
76-60-8
- 0.99
- RongNa Biotechnology Co.,Ltd
-
- Bromocresol green
76-60-8
- $666.00-999.00
- 99%
- HEBEI SHENGSUAN CHEMICAL INDUSTRY CO.,LTD
-
- Bromocresol green
76-60-8
- 99%
- WUHAN FORTUNA CHEMICAL CO., LTD
