Rose bengal, GR

Name: Rose bengal, GR
Brand: Vaqora Chemicals
SKU: VQ-000706

About Rose bengal, GR

Vaqora Chemicals supplies Rose bengal (AR grade), a biological stain registered under CAS number 632-69-9. With the molecular formula C20H2Cl4I4Na2O5, it has a molar mass of 1017.6 g/mol. Its systematic (IUPAC) name is disodium, 2,3,4,5-tetrachloro-6-(2,4,5,7-tetraiodo-3-oxido-6-oxoxanthen-9-yl)benzoate. Alternative names: Acid Red 94 and Bengal Rose B sodium salt.

In its supplied form it is a maroon to dark red to brown powder. Store sealed in a dry, well-ventilated location away from incompatible materials. It carries the GHS signal word “Warning” with 1 hazard statement. Review the Safety Data Sheet before use.

Key uses span histology and cytology staining, microscopy, clinical laboratories and biological staining. Our customers for this product work in academic and industrial research, diagnostics and biotechnology and textiles and dyeing.

Standard pack sizes are 5 g, 25 g, 100 g and 500 g, and every batch ships with a Certificate of Analysis (COA) and we export worldwide.

Typical applications

Histology & cytology staining
Microscopy
Clinical laboratories
Biological staining

Industries

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Rose bengal, GR
Catalogue No.	VQ-000706
CAS Number	632-69-9
IUPAC name	disodium;2,3,4,5-tetrachloro-6-(2,4,5,7-tetraiodo-3-oxido-6-oxoxanthen-9-yl)benzoate
Molecular formula	C₂₀H₂Cl₄I₄Na₂O₅
Molecular weight	1017.6 g/mol
Exact mass	1017.4601
Grade	AR
HSN code	32049000
InChIKey	UWBXIFCTIZXXLS-UHFFFAOYSA-L
SMILES	C1=C2C(=C3C=C(C(=O)C(=C3OC2=C(C(=C1I)[O-])I)I)I)C4=C(C(=C(C(=C4Cl)Cl)Cl)Cl)C(=O)[O-].[Na+].[Na+]
PubChem CID	32343

Physical properties
Physical form	Powder
Appearance	Maroon to dark red to brown powder
H-bond donors / acceptors	0 / 5
TPSA	89.5 Å²
Synonyms	4,5,6,7-Tetrachloro-2',4',5',7'-tetraiodofluorescein disodium salt, Acid Red 94, Bengal Rose B sodium salt, Rose Bengal sodium salt, Rose bengal sodium, Rose bengal extra, Rose Bengal disodium, Japan red 105-1, Red no. 105-1, Aka105(1), 4,5,6,7-Tetrachloro-2',4',5',7'-Tetraiodofluorescein Disodium, Sodium 2,3,4,5-tetrachloro-6-(2,4,5,7-tetraiodo-6-oxido-3-oxo-3H-xanthen-9-yl)benzoate

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H319Causes serious eye irritation

Precautionary statements: P264 + P265, P280, P305 + P351 + P338, P337 + P317

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 632-69-9

Reference Standard

Rose Bengal Sodium Salt

CAS: 632-69-9
Formula: C₂₀H₂Cl₄I₄Na₂O₅
MW: 1017.6 g/mol

In stock

Rose bengal, dye content, 95%

CAS: 632-69-9
Formula: C₂₀H₂Cl₄I₄Na₂O₅
MW: 1017.6 g/mol

VQ-000705

Frequently asked questions

What is the CAS number of Rose bengal, GR?

The CAS Registry Number of Rose bengal, GR is 632-69-9. It is also known as 4,5,6,7-Tetrachloro-2',4',5',7'-tetraiodofluorescein disodium salt, Acid Red 94, Bengal Rose B sodium salt.

What is the molecular formula and molecular weight of Rose bengal, GR?

Rose bengal, GR has the molecular formula C20H2Cl4I4Na2O5 and a molecular weight of 1017.6 g/mol.

Which grade and pack sizes of Rose bengal, GR can I order?

We supply Rose bengal, GR in AR grade, in 5 g, 25 g, 100 g, 500 g, 1 kg, 25 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Rose bengal, GR?

Yes. Every lot of Rose bengal, 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 Rose bengal, GR be shipped internationally?

Yes. Rose bengal, 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.