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Osmium Tetroxide
Osmium Tetroxide is predominantly used in electron microscopy as a stain to add contrast to digitally scanned images.
Name: Sodium bicarbonate CAS No.: 144-55-8 Appearance: White powder or opaque monoclinic system fine crystals Molecular formula: CHNaO3 Molecular Weight: 84.01 Melting point:>300 °C(lit.) PACKAGE:25KG/BAG
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Name: Vinyltrimethylsilane CAS number: 754-05-2 Molecular formula: C5H12Si Molecular weight: 100.23 EINECS number: 212-042-9 Mol file: 754-05-2.mol
Name: Ethoxydimethylvinylsilane CAS number: 5356-83-2 Molecular formula: C6H14OSi Molecular weight: 130.26 EINECS number: 226-341-7 Mol file: 5356-83-2.mol
Name: CHLORODIMETHYLPINYLSILANE CAS number: 1719-58-0 Molecular formula: C4H9ClSi Molecular weight: 120.65 EINECS number: 217-007-1 Mol file: 1719-58-0.mol
Name: 1,1,3,3-TETRAMETHYL-1,3-DIVINYLDISILAZANE CAS number: 7691-02-3 Molecular formula: C8H19NSi2 Molecular weight: 185.41 EINECS number: 231-701-1 Mol file: 7691-02-3.mol
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Name: Menthol
CAS No.: 15356-70-4;98167-53-4;89-78-1;1490-04-6
Appearance: Colourless, transparent hexagonal or needlelike crystals.
Solubility: This product is highly soluble in ethanol, chloroform, or ether, and only slightly soluble in water.
Specific rotation:- 49°～-50°
Melting point: 42～44℃
Boiling point: 212 ℃
Flash point: 93 ℃
Refractive index: 1.4615
Solubility: insoluble in ethanol, 95% ethanol, ether, and water; Slightly soluble in hot benzene and 95% ethanol.
Application category:
Menthol is widely used in inhalants, oral suspensions, oral syrups, topical preparations, and tablets.
Characteristics：
This product is a colorless needle shaped or prismatic crystalline or white crystalline powder; It has a special aroma of mint, with a spicy taste at the beginning and a cool aftertaste; Ethanol solution exhibits neutral reaction.
Melting point：
The melting point of this product is 42-44℃ (General Rule 0612).
Specific Rotation：
Take this product, weigh it accurately, dissolve it in ethanol and dilute it quantitatively to make a solution containing about 0.1g per 1ml. Determine according to the method (General Rule 0621), and the specific rotation should be -49 to 50 °.
Menthol is widely used as a flavoring or flavoring agent in pharmaceuticals, candies, and cosmetics. In addition to its unique mint aroma, naturally occurring L-menthol also has a cooling function and is used in many topical preparations. Mannitol has a similar effect to this product due to its endothermic effect during dissolution; Unlike mannitol, L-menthol can directly interact with cooling receptors in the human body. D-menthol does not have a cooling effect. Racemic menthol has approximately half the effect of L-menthol. When used to prepare flavored tablets, menthol is usually dissolved in 95% ethanol and then sprayed onto the tablet particles, rather than being used as a solid excipient. Menthol has been studied and considered as a transdermal enhancer. It can also be used in perfume and tobacco products, and as a therapeutic agent.
Article
Menthol Crystal
Batch No.
MC20240818
Packing
25kg fibre drum
Quantity(Drums)
48
Weight(kgs)
1200KGS
Report date
AUG.18,2024
Testing Standards
FCC10/USP39/JP16/EP8.05
Manufacturing Date
AUG.18,2024
Expiry Date
AUG.17,2027
Items
Standards
Analytical Results
FCC10/USP39/JP16/EP8.05
Identification
Colourless, transparent hexagonal or
needlelike crystals.
Complies with standard
Melting point(℃)
41～44℃
42℃
Solubility
1g soluble in 5ml of 90% v/v
alcohol,forming a clear solution
Complies with standard
Specific rotation
(25℃)
-45°~-51°
-49.7°
Limit of Nonvolatile
residue (%)
Not overrun 0.05 under condition of 105
℃
0.01
Chromatographic purity
98.5% – 101.0% on the dried basis
99.30%
As Content
≤3ppm
Not detected
Heavy metals
≤10ppm
Not detected
Residue on ignition
≤0.1%
0.03%
Related substances
Examine by gas chromatography
Meets the requirement
Conclusion
Analytical results conforming to standard FCC10/USP39/JP16/EP8.05
Osmium Tetroxide is predominantly used in electron microscopy as a stain to add contrast to digitally scanned images.
Formic acid is one of the basic organic chemical raw materials, widely used in pesticides, leather, dyes, pharmaceuticals and rubber industries.
MSG Industrial Cell-mass is a good protein source and substitute of animal sourced protein (e.g. fish meal, pork meal, etc.) in pourtry, livestocks, and aquafeed industries.
4-Aminophenol (or para-aminophenol or p-aminophenol) is the organic compound with the formula H2NC6H4OH. Typically available as a white powder,[2] it was commonly used as a developer for black-and-white film, marketed under the name Rodinal.
TNPP is packed in 200Kg Steel Drums. Store in a cool and dry place, keep container closed when not in use.
Light yellow to amber transparent liquid,slightly soluble in water,soluble in alcohol,ether,ketone and other polar organic solvents,with polyehter,polyester polyol compatibility is good.
We have produced chemical more than fifteen years., 80% products are for export .
para-Anisidine (p-anisidine) is an organic compound with the formula CH3OC6H4NH2. A white solid, commercial samples can appear grey-brown owing to air oxidation.
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