Orange G Sodium Salt

Orange G Sodium Salt

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

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SKU 02151787-CF
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Description

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

Research Use Only (RUO). Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

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
Beilstein Registry Number 4120705
Boiling Point 218-643°C
Color Index 16230
Density g/cm³
EC Number 217-705-6
Flash Point >115°C o.c.
Format Crystalline powder
Applications Histological stain||Used in Mallory's connective tissue stain||Kreyberg's method for keratin and mucus and prostatic carcinoma cells
MDL # MFCD00012457
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
Physical Appearance Orange Crystalline Powder
Product Families Description Orange G
Product Overview Orange G Sodium Salt
RTECS Number QJ6500000
Solubility 50 to 100 mg/mL at 74.3° F (NTP, 1992)
Storage and Handling Store at Room Temperature(15-30 °C).
Usage Statement Research Use Only (RUO). Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.
UV Visible Absorbance λ max (water): 475 - 481 nm
Vapor Pressure <h5 class="minor-section-title">Vapour pressure</h5>at 20°C: negligible