Orange G, sodium salt

Key Features and Details

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: # 1936-15-8
MOLECULAR FORMULA: C16H10N2O7S2Na2
MOLECULAR WEIGHT: 452.363 g/mol
BEILSTEIN REGISTRY No.: 4120705
EC No: 217-705-6
MDL No: MFCD00012457
SKU 02151787-CF Categories , , , Tag

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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
Base Catalog Number: 151787
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
Auto Ignition: 260-371°C
Beilstein Registration No : 4120705
Boiling Point : 218-643°C
CAS : # 1936-15-8
Color Index : 16230
Density : g/cm³
EC No : 217-705-6
Flash Point : >115°C o.c.
Format : Crystalline powder
MDL No : MFCD00012457
Melting Point : 572 to 707° F (decomposes) (NTP, 1992)
Molecular Formula : C16H10N2O7S2Na2
Molecular Weight : 452.363 g/mol
PPE : Eyeshields, Gloves, respirator filter
RTECS No : QJ6500000
Solubility : 50 to 100 mg/mL at 74.3° F (NTP, 1992)
UV Visible Absorbance : ? max (water): 475 - 481 nm
Vapor Pressure :
Vapour pressure
at 20°C: negligible

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