Bromocresol purple, GR

Name: Bromocresol purple, GR
Brand: Vaqora Chemicals
SKU: VQ-000520

About Bromocresol purple, GR

Listed under CAS 115-40-2, Bromocresol purple is a biological stain available from Vaqora Chemicals in AR grade. The compound has the formula C21H16Br2O5S, corresponding to a molecular weight of 540.2 g/mol. Systematically, it is named 2-bromo-4-[3-(3-bromo-4-hydroxy-5-methylphenyl)-1,1-dioxo-2,1lambda6-benzoxathiol-3-yl]-6-methylphenol. It is also known as 5,5'-Dibromo-o-cresolsulfonphthalein or BCP.

The product is provided as a powder. Reported physical data include a melting point of 240 °C (dec.). Its solubility is described as ethanol: soluble1 mg/mL. Keep the container tightly sealed and store it in a cool, dry area. Under GHS it is labelled “Warning”, so handle it with suitable PPE and consult the SDS.

It is commonly used for histology and cytology staining, microscopy, clinical laboratories and biological staining. Typical end-use sectors are academic and industrial research, diagnostics and biotechnology and textiles and dyeing.

Available in 5 g, 25 g, 100 g and 1 kg packs, Bromocresol purple is dispatched with a Certificate of Analysis (COA) to destinations worldwide.

Typical applications

Histology & cytology staining
Microscopy
Clinical laboratories
Biological staining

Industries

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Bromocresol purple, GR
Catalogue No.	VQ-000520
CAS Number	115-40-2
IUPAC name	2-bromo-4-[3-(3-bromo-4-hydroxy-5-methylphenyl)-1,1-dioxo-2,1lambda6-benzoxathiol-3-yl]-6-methylphenol
Molecular formula	C₂₁H₁₆Br₂O₅S
Molecular weight	540.2 g/mol
Exact mass	539.9065
Grade	AR
HSN code	29349900
InChIKey	ABIUHPWEYMSGSR-UHFFFAOYSA-N
SMILES	CC1=CC(=CC(=C1O)Br)C2(C3=CC=CC=C3S(=O)(=O)O2)C4=CC(=C(C(=C4)C)O)Br
PubChem CID	8273

Physical properties
Physical form	Powder
Appearance	Powder
Melting point	240 °C (dec.)
Solubility	ethanol: soluble1 mg/mL
LogP (XLogP3)	5.1
H-bond donors / acceptors	2 / 5
TPSA	92.2 Å²
Synonyms	5,5'-Dibromo-o-cresolsulfonphthalein, BCP, Bromcresol purple sultone form, Phenol, 4,4'-(1,1-dioxido-3H-2,1-benzoxathiol-3-ylidene)bis[2-bromo-6-methyl-, Phenol, 4,4'-(1,1-dioxido-3H-2,1-benzoxathiol-3-ylidene)bis(2-bromo-6-methyl-, Purple, Bromcresol, Purple, Bromocresol, Phenol, 4,4'-(3H-2,1-benzoxathiol-3-ylidene)bis(2-bromo-6-methyl)-, S,S-dioxide, 3,3-Bis(3-bromo-4-hydroxy-5-methylphenyl)-3H-benzo[c][1,2]oxathiole 1,1-dioxide, Indicator bromocresol purple, C21H16Br2O5S, Bromocresol Roxo

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation

Precautionary statements: P261, P264, P264 + P265, P271, P280, P302 + P352, P304 + P340, P305 + P351 + P338, P319, P321, P332 + P317, P337 + P317, P362 + P364, P403 + P233, P405, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Other grades of CAS 115-40-2

Practical

Bromocresol purple, practical grade

CAS: 115-40-2
Formula: C₂₁H₁₆Br₂O₅S
MW: 540.2 g/mol

VQ-045570

Bromocresol purple, solution

CAS: 115-40-2
Formula: C₂₁H₁₆Br₂O₅S
MW: 540.2 g/mol

VQ-003522

Frequently asked questions

What is the CAS number of Bromocresol purple, GR?

The CAS Registry Number of Bromocresol purple, GR is 115-40-2. It is also known as 5,5'-Dibromo-o-cresolsulfonphthalein, BCP, Bromcresol purple sultone form.

What is the molecular formula and molecular weight of Bromocresol purple, GR?

Bromocresol purple, GR has the molecular formula C21H16Br2O5S and a molecular weight of 540.2 g/mol. Its IUPAC name is 2-bromo-4-[3-(3-bromo-4-hydroxy-5-methylphenyl)-1,1-dioxo-2,1lambda6-benzoxathiol-3-yl]-6-methylphenol.

Which grade and pack sizes of Bromocresol purple, GR can I order?

We supply Bromocresol purple, GR in AR grade, in 5 g, 25 g, 100 g, 1 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Bromocresol purple, GR?

Yes. Every lot of Bromocresol purple, GR is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can Bromocresol purple, GR be shipped internationally?

Yes. Bromocresol purple, GR is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.