Description

Orange II Certified CAS: 633-96-5 | MF: C16H11N2NaO4S | MW: 350.32, Buy now Histological Stains & Dyes for Histology, Cytology, Microbiology, Hematology & Biology Lab from TriStains. All Tristains products are exclusively distributed by Dawn Scientific Inc.

Orange II Certified, a synthetic azo dye classified under monoazo dyes, displays an orange-red hue and is represented by the chemical formula C₁₆H₁₁N₂NaO₄S. Widely employed in histology, cytology, analytical chemistry. Orange II Certified serves as a reliable and valuable dye for staining and visualizing proteins and other cellular components.

TriStains provides a marketplace for histology and biological stains, which is comprehensive enough to encompass the peculiar requirements of laboratories specializing in Histology, Cytology, Microbiology, and Hematology. With a reputation for exceeding quality expectations, TriStains performance is outstanding which allows for resolution of cell and tissue components fundamental to life sciences to be clearly visualized. Each product under TriStains series is validated for accuracy, reliability and consistency. TriStains, which manufactures and markets stains and indicators in various packing, offers laboratories turn key solutions for all their staining and indicator needs, improving accuracy in every experiment.

Application :

Orange II Certified is commonly used as a counterstain in various histological and cytological staining procedures, providing contrast and highlighting specific cellular structures.
The dye has a high affinity for basic proteins, making it useful for the staining and visualization of proteins in tissues and cells.
It can be used as a colorimetric indicator in analytical techniques, such as pH testing and the determination of protein concentrations.

Benefits :

Has a high affinity for basic proteins
Versatile and stable
Cost-effective

Additional information

CAS NO	633-96-5
Synonyms	4-(2-Hydroxy-1-naphthylazo)benzenesulfonic acid sodium salt; Acid Orange 7; Acid Orange A
CI No	15510
MW	350.32
Brand	Tristains
Size	100g, 10g, 25g, 50g

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TECHNICAL INFORMATION

Alternate Names	4-(2-Hydroxy-1-naphthylazo)benzenesulfonic acid sodium salt; Acid Orange 7; Acid Orange A
Application	Orange II sodium salt is an azo dye pH indicator
CAS Number	633-96-5
Molecular Weight	350.32
Molecular Formula:	C₁₆H₁₁N₂NaO₄S

For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data (including water content).

Orange II sodium salt is a pH indicator and applicable in biological applications. Orange II sodium salt is useful in the Wilson-Ezrin method for pituitary acidophils, as a counterstain following Heidenhain’s or Weigert’s hematoxylin on paraffin sections, and as a substitute for Orange G (sc-203750) in Floemming’s triple stain.

TECHNICAL INFORMATION

Appearance	Powder
Physical State	Solid
Solubility	Soluble in water (116 mg/ml at 30° C), and ethanol.
Storage	Store at room temperature
Melting Point	164° C
Density :	1.02 g/cm³
Refractive Index:	n²⁰_D~1.68 (Predicted)

SAFETY INFORMATION

For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.

WGK Germany	3
RTECS	DB7084000
PubChem CID	23669380
Merck Index	14: 6858
MDL Number	MFCD00011657
EC Number	211-199-0
Beilstein Registry :	3898201
SMILES :	C1=CC=C2C(=C1)C=CC(=O)C2=NNC3=CC=C(C=C3)S(=O)(=O)[O-].[Na+]

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S10138

Orange II Certified

CAS No

633-96-5

Synonym(s)

4-(2-Hydroxy-1-naphthylazo)benzenesulfonic acid sodium salt; Acid Orange 7; Acid Orange A

Molecular Formula:

C₁₆H₁₁N₂NaO₄S

Molecular Weight:

350.32

EC Number:

211-199-0

Colour Index Number:

15510

PubChem CID:

135442941

MDL number:

MFCD00011657

Specification SDS

CAS NO	633-96-5
Synonyms	4-(2-Hydroxy-1-naphthylazo)benzenesulfonic acid sodium salt; Acid Orange 7; Acid Orange A
CI No	15510
MW	350.32
Brand	Tristains
Size	100g, 10g, 25g, 50g

Alternate Names	4-(2-Hydroxy-1-naphthylazo)benzenesulfonic acid sodium salt; Acid Orange 7; Acid Orange A
Application	Orange II sodium salt is an azo dye pH indicator
CAS Number	633-96-5
Molecular Weight	350.32
Molecular Formula:	C₁₆H₁₁N₂NaO₄S

Appearance	Powder
Physical State	Solid
Solubility	Soluble in water (116 mg/ml at 30° C), and ethanol.
Storage	Store at room temperature
Melting Point	164° C
Density :	1.02 g/cm³
Refractive Index:	n²⁰_D~1.68 (Predicted)

WGK Germany	3
RTECS	DB7084000
PubChem CID	23669380
Merck Index	14: 6858
MDL Number	MFCD00011657
EC Number	211-199-0
Beilstein Registry :	3898201
SMILES :	C1=CC=C2C(=C1)C=CC(=O)C2=NNC3=CC=C(C=C3)S(=O)(=O)[O-].[Na+]