Nigrosine (water soluble)

Name: Nigrosine (water soluble)
Brand: Vaqora Chemicals
SKU: VQ-000655

About Nigrosine (water soluble)

Listed under CAS 8005-03-6, Nigrosine (water soluble) is a biological stain available from Vaqora Chemicals (Microscopy grade). Formula C22H14N6Na2O9S2, molecular weight 616.5 g/mol. Its systematic (IUPAC) name is disodium, 4-amino-5-hydroxy-3-[(4-nitrophenyl)diazenyl]-6-phenyldiazenylnaphthalene-2,7-disulfonate. Alternative names: Acid black 2 and Nigrosin.

It is supplied as dark blue to deep blue to black powder or crystals. Store sealed in a dry, well-ventilated location away from incompatible materials. Handle it with standard laboratory precautions and appropriate personal protective equipment.

Typical applications include histology and cytology staining, microscopy, clinical laboratories and biological staining. Buyers come mainly from academic and industrial research, diagnostics and biotechnology and paints and coatings.

Available in 25 g, 100 g, 1 kg and 4 x 25 kg packs, Nigrosine (water soluble) is dispatched with a Certificate of Analysis (COA) to destinations worldwide.

Typical applications

Histology & cytology staining
Microscopy
Clinical laboratories
Biological staining

Industries

Specifications & identifiers

Chemical identifiers
Product name	Nigrosine (water soluble)
Catalogue No.	VQ-000655
CAS Number	8005-03-6
IUPAC name	disodium;4-amino-5-hydroxy-3-[(4-nitrophenyl)diazenyl]-6-phenyldiazenylnaphthalene-2,7-disulfonate
Molecular formula	C₂₂H₁₄N₆Na₂O₉S₂
Molecular weight	616.5 g/mol
Exact mass	616.0059
Grade	Microscopy
HSN code	32049000
InChIKey	AOMZHDJXSYHPKS-UHFFFAOYSA-L
SMILES	C1=CC=C(C=C1)N=NC2=C(C3=C(C(=C(C=C3C=C2S(=O)(=O)[O-])S(=O)(=O)[O-])N=NC4=CC=C(C=C4)[N+](=O)[O-])N)O.[Na+].[Na+]
PubChem CID	135442942

Physical properties
Physical form	Crystalline
Appearance	Dark blue to deep blue to black powder or crystals
H-bond donors / acceptors	2 / 14
TPSA	273 Å²
Synonyms	Acid black 2, Nigrosin, Naphthol Blue Black, Amido Black 10B, Buffalo Black NBR, C.I. Acid Black 1, Amido black, C.I. Acid Black 1, disodium salt, Acidal Black 10B, Naphthol Blue Black B, Acidal Navy Blue 3BR, Acid Blue Black

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 8005-03-6

Microscopy

Nigrosine, solution

CAS: 8005-03-6
Formula: C₂₂H₁₄N₆Na₂O₉S₂
MW: 616.5 g/mol

VQ-003613

Frequently asked questions

What is the CAS number of Nigrosine (water soluble)?

The CAS Registry Number of Nigrosine (water soluble) is 8005-03-6. It is also known as Acid black 2, Nigrosin, Naphthol Blue Black.

What is the molecular formula and molecular weight of Nigrosine (water soluble)?

Nigrosine (water soluble) has the molecular formula C22H14N6Na2O9S2 and a molecular weight of 616.5 g/mol.

Which grade and pack sizes of Nigrosine (water soluble) can I order?

We supply Nigrosine (water soluble) in Microscopy grade, in 25 g, 100 g, 1 kg, 4 x 25 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Nigrosine (water soluble)?

Yes. Every lot of Nigrosine (water soluble) 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 Nigrosine (water soluble) be shipped internationally?

Yes. We export Nigrosine (water soluble) worldwide by air and sea freight or express courier, on EXW, FOB, CIF, CFR or DAP Incoterms, with full export documentation.