Fast Red E

Name: Fast Red E
Brand: Vaqora Chemicals
SKU: VQ-000581

About Fast Red E

Fast Red E is a biological stain carrying the CAS registry number 2302-96-7. The compound has the formula C20H12N2Na2O7S2, corresponding to a molecular weight of 502.4 g/mol. The IUPAC name is disodium, 6-hydroxy-5-[(4-sulfonatonaphthalen-1-yl)diazenyl]naphthalene-2-sulfonate. Alternative names: Acid red 13 and C.I. Acid Red 13.

It is supplied as a solid. Solubility: soluble in water. Store in a tightly closed container in a cool, dry and well-ventilated place. Good laboratory practice and suitable PPE are recommended during handling.

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

Vaqora Chemicals supplies Fast Red E in 10 g, 100 g and 1 kg packs, each shipped with a Certificate of Analysis (COA), and exports worldwide.

Typical applications

Histology & cytology staining
Microscopy
Clinical laboratories

Industries

Specifications & identifiers

Chemical identifiers
Product name	Fast Red E
Catalogue No.	VQ-000581
CAS Number	2302-96-7
IUPAC name	disodium;6-hydroxy-5-[(4-sulfonatonaphthalen-1-yl)diazenyl]naphthalene-2-sulfonate
Molecular formula	C₂₀H₁₂N₂Na₂O₇S₂
Molecular weight	502.4 g/mol
Exact mass	501.9881
HSN code	29420090
InChIKey	YCDHVKWTZBVDKD-UHFFFAOYSA-L
SMILES	C1=CC=C2C(=C1)C(=CC=C2S(=O)(=O)[O-])N=NC3=C(C=CC4=C3C=CC(=C4)S(=O)(=O)[O-])O.[Na+].[Na+]
PubChem CID	16813

Physical properties
Physical form	Solid
Appearance	Solid
Solubility	Soluble in water
H-bond donors / acceptors	1 / 9
TPSA	176 Å²
Synonyms	Acid red 13, C.I. Acid Red 13, C.I. Acid Red 13 (7CI), Food Red 4, C.I. Food Red 4, Sodium 4-((2-hydroxy-6-sulfonatonaphthalen-1-yl)diazenyl)naphthalene-1-sulfonate, Tertracid Red E, HD Fast Red E, Neklacid Red E, Dalf Fast Red, Acidal Red E, Acidol Red E

Documents

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

Frequently asked questions

What is the CAS number of Fast Red E?

The CAS Registry Number of Fast Red E is 2302-96-7. It is also known as Acid red 13, C.I. Acid Red 13, C.I. Acid Red 13 (7CI).

What is the molecular formula and molecular weight of Fast Red E?

Fast Red E has the molecular formula C20H12N2Na2O7S2 and a molecular weight of 502.4 g/mol.

Which grade and pack sizes of Fast Red E can I order?

We supply Fast Red E, in 10 g, 100 g, 1 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Fast Red E?

Yes. Every lot of Fast Red E 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 Fast Red E be shipped internationally?

Yes. We export Fast Red E worldwide by air and sea freight or express courier, on EXW, FOB, CIF, CFR or DAP Incoterms, with full export documentation.