Naphthol green B

Name: Naphthol green B
Brand: Vaqora Chemicals
SKU: VQ-000645

About Naphthol green B

Listed under CAS 19381-50-1, Naphthol green B is a biological stain available from Vaqora Chemicals in Microscopy grade. Its molecular formula is C30H15FeN3Na3O15S3 and its molecular weight is 878.5 g/mol. Systematically, it is named trisodium. Iron(3+). Tris(5-nitroso-6-oxidonaphthalene-2-sulfonate). Common synonyms include Acid Green 1 and C.I. Acid Green 1.

In its supplied form it is dark green powder or crystals. Store in a tightly closed container in a cool, dry and well-ventilated place. Handle it with standard laboratory precautions and appropriate personal protective equipment.

Typical applications include histology and cytology staining, microscopy, clinical laboratories and biological staining. It is used across academic and industrial research, diagnostics and biotechnology and textiles and dyeing.

Vaqora Chemicals supplies Naphthol green B in 25 g, 100 g, 1 kg and 5 kg packs, each shipped with a Certificate of Analysis (COA), and exports worldwide.

Typical applications

Histology & cytology staining
Microscopy
Clinical laboratories
Biological staining

Industries

Specifications & identifiers

Chemical identifiers
Product name	Naphthol green B
Catalogue No.	VQ-000645
CAS Number	19381-50-1
IUPAC name	trisodium;iron(3+);tris(5-nitroso-6-oxidonaphthalene-2-sulfonate)
Molecular formula	C₃₀H₁₅FeN₃Na₃O₁₅S₃
Molecular weight	878.5 g/mol
Exact mass	877.8708
Grade	Microscopy
HSN code	32049000
InChIKey	JMXROTHPANUTOJ-UHFFFAOYSA-H
SMILES	C1=CC2=C(C=CC(=C2N=O)[O-])C=C1S(=O)(=O)[O-].C1=CC2=C(C=CC(=C2N=O)[O-])C=C1S(=O)(=O)[O-].C1=CC2=C(C=CC(=C2N=O)[O-])C=C1S(=O)(=O)[O-].[Na+].[Na+].[Na+].[Fe+3]
PubChem CID	6915910

Physical properties
Physical form	Crystalline
Appearance	Dark green powder or crystals
H-bond donors / acceptors	0 / 18
TPSA	354 Å²
Synonyms	Acid Green 1, C.I. Acid Green 1, Ext D&C Green 1, C.I. Acid Green 1 (VAN), Iron, tris(5,6-dihydro-5,6-dioxo-2-naphthalenesulfonic acid-5-oximato)-, trisodium salt, Naphthol Green, D and C Green 1, Ext D and C Green No. 1, C30H15FeN3Na3O15S3, iron(3+) sodium 5-(oxidoimino)-6-oxo-5,6-dihydronaphthalene-2-sulfonate (1/3/3), Ext D and C Green No. 1 (VAN), Acid Green 1 ( Product)

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 19381-50-1

ACS / AR

Naphthol green B, ACS, AR

CAS: 19381-50-1
Formula: C₃₀H₁₅FeN₃Na₃O₁₅S₃
MW: 878.5 g/mol

VQ-046787

Frequently asked questions

What is the CAS number of Naphthol green B?

The CAS Registry Number of Naphthol green B is 19381-50-1. It is also known as Acid Green 1, C.I. Acid Green 1, Ext D&C Green 1.

What is the molecular formula and molecular weight of Naphthol green B?

Naphthol green B has the molecular formula C30H15FeN3Na3O15S3 and a molecular weight of 878.5 g/mol.

Which grade and pack sizes of Naphthol green B can I order?

We supply Naphthol green B in Microscopy grade, in 25 g, 100 g, 1 kg, 5 kg, 25 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Naphthol green B?

Yes. Every lot of Naphthol green B 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 Naphthol green B be shipped internationally?

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