Nitrazine yellow, indicator

Name: Nitrazine yellow, indicator
Brand: Vaqora Chemicals
SKU: VQ-000658

About Nitrazine yellow, indicator

Listed under CAS 5423-07-4, Nitrazine yellow, indicator is a biological stain available from Vaqora Chemicals. With the molecular formula C16H8N4Na2O11S2, it has a molar mass of 542.4 g/mol. Its systematic (IUPAC) name is disodium, 3-[(2,4-dinitrophenyl)diazenyl]-4-hydroxynaphthalene-2,7-disulfonate. Common synonyms include Nitrazol Yellow and Phenaphthazine.

The material typically appears as a yellowish to dark yellow powder or crystal. Keep the container tightly sealed and store it in a cool, dry area. The GHS classification uses the signal word “Warning”, so appropriate gloves, eye protection and ventilation are recommended.

Key uses span histology and cytology staining, microscopy, clinical laboratories and diagnostic assays. Typical end-use sectors are academic and industrial research, diagnostics and biotechnology and textiles and dyeing.

We offer Nitrazine yellow, indicator in 1 g, 5 g, 25 g and 1 kg packs with a batch-specific COA, and ship to customers worldwide.

Typical applications

Histology & cytology staining
Microscopy
Clinical laboratories
Diagnostic assays

Industries

Specifications & identifiers

Chemical identifiers
Product name	Nitrazine yellow, indicator
Catalogue No.	VQ-000658
CAS Number	5423-07-4
IUPAC name	disodium;3-[(2,4-dinitrophenyl)diazenyl]-4-hydroxynaphthalene-2,7-disulfonate
Molecular formula	C₁₆H₈N₄Na₂O₁₁S₂
Molecular weight	542.4 g/mol
Exact mass	541.9426
HSN code	32041329
InChIKey	XBLIFEQTVVSTIM-UHFFFAOYSA-L
SMILES	C1=CC(=C(C=C1[N+](=O)[O-])[N+](=O)[O-])N=NC2=C(C=C3C=C(C=CC3=C2O)S(=O)(=O)[O-])S(=O)(=O)[O-].[Na+].[Na+]
PubChem CID	79465

Physical properties
Physical form	Crystalline
Appearance	Yellowish to dark yellow powder or crystal
H-bond donors / acceptors	1 / 13
TPSA	268 Å²
Synonyms	2-(2,4-Dinitrophenylazo)-1-hydroxynaphthalene-3,6-disulfonic acid disodium salt, 2-(2,4-Dinitrophenylazo)naphthol-3,6-disulfonic acid disodium salt, Nitrazol Yellow, Disodium 2-(2,4-dinitrophenylazo)-1-hydroxynaphthalene-3,6-disulphonate, Phenaphthazine, Nitrazine paper, starbld0009631, delta Paper, indicator, Sodium 3-((2,4-dinitrophenyl)diazenyl)-4-hydroxynaphthalene-2,7-disulfonate, 2,7-Naphthalenedisulfonic acid, 3-((2,4-dinitrophenyl)azo)-4-hydroxy-, disodium salt, 2,7-Naphthalenedisulfonic acid, 3-[(2,4-dinitrophenyl)azo]-4-hydroxy-, disodium salt, Nitrazine yellow Indicator

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H315Causes skin irritation

Precautionary statements: P264, P280, P302 + P352, P321, P332 + P317, P362 + P364

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

Frequently asked questions

What is the CAS number of Nitrazine yellow, indicator?

The CAS Registry Number of Nitrazine yellow, indicator is 5423-07-4. It is also known as 2-(2,4-Dinitrophenylazo)-1-hydroxynaphthalene-3,6-disulfonic acid disodium salt, 2-(2,4-Dinitrophenylazo)naphthol-3,6-disulfonic acid disodium salt, Nitrazol Yellow.

What is the molecular formula and molecular weight of Nitrazine yellow, indicator?

Nitrazine yellow, indicator has the molecular formula C16H8N4Na2O11S2 and a molecular weight of 542.4 g/mol.

Which grade and pack sizes of Nitrazine yellow, indicator can I order?

We supply Nitrazine yellow, indicator, in 1 g, 5 g, 25 g, 1 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Nitrazine yellow, indicator?

Yes. Every lot of Nitrazine yellow, indicator 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 Nitrazine yellow, indicator be shipped internationally?

Yes. Nitrazine yellow, indicator 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.