Molekula
Bromocresol Green
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 1999 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Bromocresol Green is a pH indicator commonly used in titrations and biological assays to detect acid-base transitions. It changes color from yellow to blue as pH increases. Available in powder form with a molecular weight of 698.01 g/mol, it has a CAS number of 76-60-8 and is stable at ambient storage conditions.
Molekula supplies Bromocresol Green in 25 g packs, from £121.20 inc. VAT. It is in stock for same-day dispatch. Every batch ships with a certificate of analysis, and safety data sheets are available in 7 languages. Larger quantities, up to multi-tonne, are quoted on request.
Example image for illustration only. Other packaging and pack sizes are available.
Often bought together
Pricing & pack sizes
In stock — same-day dispatch
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
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25 g — £101.00 per pack ex VAT · £121.20 inc. VAT
Need a different quantity or pack?
Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | Yellowish tan powder |
| Identification | Conforms to reference |
| Loss on Drying | <3.0% |
| The Maximum Absorption Wavelength A1 (pH3.8) | 438 - 443nm |
| The Maximum Absorption Wavelength A2 (pH5.4) | 615 - 618nm |
| Solubility (0.1% EtOH) | Clear Golden Yellow Solution |
| Transition range (pH 3.8 - 5.4) | Yellowish Green - Blue |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Acid |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Melting Point | 218.5 °C |
Source: PubChem CID 6451 (PAC Chemical Database)
Identification
| Property | Value |
|---|---|
| SKU | 34050770 |
| CAS Number | 76-60-8 |
| IUPAC Name | 2,6-dibromo-4-[3-(3,5-dibromo-4-hydroxy-2-methylphenyl)-1,1-dioxo-2,1lambda6-benzoxathiol-3-yl]-3-methylphenol |
| EC Number | 200-972-8 |
| Molecular Formula | C21H14Br4O5S |
| Molecular Weight | 698.01 |
| Exact Mass | 697.7255 |
| SMILES | CC1=C(C(=C(C=C1C2(C3=CC=CC=C3S(=O)(=O)O2)C4=CC(=C(C(=C4C)Br)O)Br)Br)O)Br |
| InChIKey | FRPHFZCDPYBUAU-UHFFFAOYSA-N |
| InChI | 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 |
| PubChem CID | 6451 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 2934999001 |
| Tariff Code | 2934999090 |
Safety & GHS
Precautionary statements
- P280 Wear protective gloves/protective clothing/eye protection/face protection
Documents
Safety Data Sheets (SDS)
Available in English, English (US), French, German, Italian, Portuguese, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Quality certificates
Molekula Group is certified to ISO 9001:2015 (quality) and ISO 14001:2015 (environmental management), audited by a UKAS-accredited body. Both certificates are valid to 17 May 2028.
Synonyms
- 3',3'',5',5''-Tetrabromo-m-cresolsulfonephthalein
- 3',5',5''-Tetrabrom-m-cresolsulfonephthalein
- BROMCRESOL GREEN
- Bromocresol blue
- Green, Bromcresol
- Green, Bromocresol
- m-Cresol, 4,4'-(3H-2,1-benzoxathiol-3-ylidene)bis(2,6-dibromo-, S,S-dioxide
- Tetrabromo-m-cresolphthalein sulfone
- Tetrabromocresolsulfonphthalein
- Verde de bromocresol
Frequently asked questions
What is Bromocresol Green used for?
Bromocresol Green is primarily used as a pH indicator in titrations, particularly in the range of pH 3.8 to 5.4, and is commonly found in biochemical assays and analytical chemistry.
What is the chemical formula and molecular weight of Bromocresol Green?
The chemical formula is C21H14Br4O5S, and the molecular weight is 698.01 g/mol.
How should Bromocresol Green be stored?
It should be stored at ambient temperature, protected from light and moisture, in a tightly sealed container.
What grade of Bromocresol Green does Molekula supply?
Molekula supplies Bromocresol Green as a yellowish tan powder tested against a specification covering identification, loss on drying (<3.0%), maximum absorption wavelengths at pH 3.8 (438-443 nm) and pH 5.4 (615-618 nm), solubility and transition range. Please contact our team for further grade details.
Can Molekula supply Bromocresol Green in bulk?
Yes, Molekula can supply Bromocresol Green in bulk quantities—please contact our sales team for pricing and availability.
What documentation comes with a purchase of Bromocresol Green?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS), compliant with regulatory standards.
Where can I buy Bromocresol Green?
Directly from Molekula, which lists Bromocresol Green in 25 g packs from £121.20 inc. VAT, with a certificate of analysis for every batch. Larger quantities are quoted on request. Molekula's offices: United Kingdom, France, Spain, Germany, Italy, United States and China.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.