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Orange G, sodium salt

Orange G, sodium salt

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Key features and details

Orange G Sodium Salt

SKU: 02151787-CF

Synonyms
Acid orange 10; C.I. 16230; Wool Orange 2G; 1-Phenylazo-2-naphthol-6,8-disulfonic acid disodium salt; 7-Hydroxy-8-phenylazo-1,3-naphthalenedisulfonic acid disodium salt
CAS Number:
1936-15-8
Molecular Formula:
C16H10N2O7S2Na2
Molecular Weight:
452.363 g/mol
Beilstein Registry Number:
4120705
EC Number:
217-705-6
MDL Number:
MFCD00012457
Product Description

Orange G Sodium Salt

Application Notes

Orange G is used primarily as a histological stain. It is a pail dye that is used for faint background staining. It is used as a counterstain for a number of nuclear stains including hematoxylin, safranin O, crystal violet, methyl green and basic fuchsin. Also used as a plasma stain. Orange G is a major component in the Papanicolaou stain, which is used in cervical cytology. The compound has been used to stain cells secreting growth hormone in the anterior pituitary and stain the mature bone orange. Orange G has also been incorporated in the following: Mallory's connective tissue stain,Flemming's triple stain on paraffin sections of onion root, Kreyberg's method for keratin and mucus and prostatic carcinoma cells, as a counterstain following Heidenhain's iron hematoxylin on paraffin sections and in the Wilson-Ezrin method for pituitary acidophils. It is also used as a collagen stain for connective tissue. Used with Orcein, Alizarin Blue 2B, and Fast Green FCF in Kornhauser′s quadruple stain for most elementary structures of tissues.

Usage Statement

Unless specified otherwise, MP Biomedical's products are for research or further manufacturing use only, not for direct human use. For more information, please contact our customer service department.

Key Applications

Histological stain | Used in Mallory's connective tissue stain | Kreyberg's method for keratin and mucus and prostatic carcinoma cells

Specifications
SKU 02151787-CF
Alternate Names Acid orange 10; C.I. 16230; Wool Orange 2G; 1-Phenylazo-2-naphthol-6,8-disulfonic acid disodium salt; 7-Hydroxy-8-phenylazo-1,3-naphthalenedisulfonic acid disodium salt
Application Notes Orange G is used primarily as a histological stain. It is a pail dye that is used for faint background staining. It is used as a counterstain for a number of nuclear stains including hematoxylin, safranin O, crystal violet, methyl green and basic fuchsin. Also used as a plasma stain. Orange G is a major component in the Papanicolaou stain, which is used in cervical cytology. The compound has been used to stain cells secreting growth hormone in the anterior pituitary and stain the mature bone orange. Orange G has also been incorporated in the following: Mallory's connective tissue stain,Flemming's triple stain on paraffin sections of onion root, Kreyberg's method for keratin and mucus and prostatic carcinoma cells, as a counterstain following Heidenhain's iron hematoxylin on paraffin sections and in the Wilson-Ezrin method for pituitary acidophils. It is also used as a collagen stain for connective tissue. Used with Orcein, Alizarin Blue 2B, and Fast Green FCF in Kornhauser′s quadruple stain for most elementary structures of tissues.
Auto Ignition 260-371°C
Base Catalog Number 151787
Beilstein Registry Number 4120705
Boiling Point 218-643°C
CAS # 1936-15-8
Color Index 16230
Density g/cm³
EC Number 217-705-6
Flash Point >115°C o.c.
Format Crystalline powder
Melting Point 572 to 707° F (decomposes) (NTP, 1992)
Molecular Formula C16H10N2O7S2Na2
Molecular Weight 452.363 g/mol
Personal Protective Equipment Eyeshields, Gloves, respirator filter
RTECS Number QJ6500000
Solubility 50 to 100 mg/mL at 74.3° F (NTP, 1992)
Usage Statement Unless specified otherwise, MP Biomedical's products are for research or further manufacturing use only, not for direct human use. For more information, please contact our customer service department.
UV Visible Absorbance λ max (water): 475 - 481 nm
Vapor Pressure <h5 class="minor-section-title">Vapour pressure</h5>at 20°C: negligible
Citations
Documents

Certificate of Analyse

Certificate of Analyse
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Certificate of Analyse
Certificate of Analyse
Certificate of Analyse
Certificate of Analyse
Certificate of Analyse
Certificate of Analyse
Certificate of Analyse
Certificate of Analyse