Nigrosine, solution

Name: Nigrosine, solution
Brand: Vaqora Chemicals
SKU: VQ-003613

About Nigrosine, solution

Nigrosine, solution is a diagnostic reagent (Microscopy grade) carrying the CAS registry number 8005-03-6. The compound has the formula C22H14N6Na2O9S2, corresponding to a molecular weight of 616.5 g/mol. Systematically, it is named disodium, 4-amino-5-hydroxy-3-[(4-nitrophenyl)diazenyl]-6-phenyldiazenylnaphthalene-2,7-disulfonate. It is also known as Naphthol Blue Black or Acid black 2.

The product is provided as a liquid. Store sealed in a dry, well-ventilated location away from incompatible materials. It carries the GHS signal word “Danger” with 2 hazard statements. Review the Safety Data Sheet before use.

It is commonly used for clinical chemistry, diagnostic assays and pathology laboratories. It is used across academic and industrial research and diagnostics and biotechnology.

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

Typical applications

Clinical chemistry
Diagnostic assays
Pathology laboratories

Industries

Specifications & identifiers

Chemical identifiers
Product name	Nigrosine, solution
Catalogue No.	VQ-003613
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	38229090
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	Solution
Appearance	Liquid
H-bond donors / acceptors	2 / 14
TPSA	273 Å²
Synonyms	Naphthol Blue Black, Acid black 2, 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, Acid Blue-Black

Safety & hazard information (GHS)

Harmful / irritant

Health hazard

Signal word: Danger

Hazard statements

H317May cause an allergic skin reaction
H350May cause cancer

Precautionary statements: P201, P280, P333 + P313

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 8005-03-6

Microscopy

Nigrosine (water soluble)

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

VQ-000655

Frequently asked questions

What is the CAS number of Nigrosine, solution?

The CAS Registry Number of Nigrosine, solution is 8005-03-6. It is also known as Naphthol Blue Black, Acid black 2, Amido Black 10B.

What is the molecular formula and molecular weight of Nigrosine, solution?

Nigrosine, solution has the molecular formula C22H14N6Na2O9S2 and a molecular weight of 616.5 g/mol.

Which grade and pack sizes of Nigrosine, solution can I order?

We supply Nigrosine, solution in Microscopy grade, in 100 mL, 500 mL, 5 L, 25 L packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Nigrosine, solution?

Yes. Every lot of Nigrosine, solution 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, solution be shipped internationally?

Yes. Nigrosine, solution 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.