Skip to Content
Merck
CN

Key Documents

View All Documentation

200182

Nitrazine Yellow

indicator grade, Dye content 85 %

Synonym(s):

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

Sign In to View Organizational & Contract Pricing.

Select a Size

Change View

About This Item

Empirical Formula (Hill Notation):
C16H8N4Na2O11S2
CAS Number:
5423-07-4
Molecular Weight:
542.36
NACRES:
NA.47
PubChem Substance ID:
24851961
UNSPSC Code:
12171500
EC Number:
226-549-8
MDL number:
MFCD00003938
Colour Index Number:
14890
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist

grade

indicator grade

assay

>90.0% (HPLC)

form

powder

composition

Dye content, 85%

solubility

H2O: 1 mg/mL

λmax

586 nm

ε (extinction coefficient)

≥35000 at 587-591 nm in 0.1 M NaOH at 0.01 g/L

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

room temp

SMILES string

[Na+].[Na+].Oc1c(\N=N\c2ccc(cc2[N+]([O-])=O)[N+]([O-])=O)c(cc3cc(ccc13)S([O-])(=O)=O)S([O-])(=O)=O

InChI

1S/C16H10N4O11S2.2Na/c21-16-11-3-2-10(32(26,27)28)5-8(11)6-14(33(29,30)31)15(16)18-17-12-4-1-9(19(22)23)7-13(12)20(24)25;;/h1-7,21H,(H,26,27,28)(H,29,30,31);;/q;2*+1/p-2/b18-17+;;

InChI key

XBLIFEQTVVSTIM-QIKYXUGXSA-L

Application

Nitrazine Yellow has been used in dye-protein binding assay.

Biochem/physiol Actions

Nitrazine Yellow ( 2-(2,4-dinitrophenylazo)-1-hydroxynaphthalene-3,6-disulfonic acid disodium salt) is a pH-sensitive azo dye. It changes color from yellow to blue in pH range 6.0–7.0 and is widely used in microscopy. Throat swab immersed in nitrazine yellow is used to identify pH variations in the vagina before and after amniotomy.

Storage Class

11 - Combustible Solids

wgk

WGK 3

ppe

Eyeshields, Gloves, type N95 (US)

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
MKCD1402
MKBQ6886V
MKBG8083V
MKBD9527V
36296KJ

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Why certain dyes are useful for localizing the sentinel lymph node.
Tsopelas C and Sutton R
Journal of Nuclear Medicine, 43, 1377-1382 (2002)
Lien Van der Schueren et al.
Carbohydrate polymers, 91(1), 284-293 (2012-10-10)
Nanofibres functionalised with pH-sensitive dyes could greatly contribute to the development of stimuli-responsive materials. However, the application of biocompatible polymers is vital to allow for their use in (bio)medical applications. Therefore, this paper focuses on the development and characterisation of
Ibrahim A Abdelazim
Archives of gynecology and obstetrics, 287(2), 205-210 (2012-09-13)
This study was designed to detect the accuracy of the fetal fibronectin (Quick Check fFN test(®)) in diagnosing premature rupture of fetal membranes. This comparative prospective study was carried out over 1 year in Ahmadi Kuwait Oil Company (KOC) Hospital
View All Related Papers

Global Trade Item Number

SKUGTIN
200182-1G04061838763686
200182-5G04061832338804