Browse 961 Chemical Products and Raw Materials
Revlimid
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Rhodamine B
Rhodamine B is a synthetic red basic fluorescent dye, commonly known as pink flower. As a fluorescent reagent, the dye has been widely used in non-ferrous glass, mining industry, steel and other fields. It is a common alkaline dye in industry. Because rhodamine B is easier to dye on hot pot bottom materials and chili products than other water-soluble dyes, and it is not easy to fade, and the cost is low, so some illegal traders use rhodamine dye to dye these foods, which is inferior.
Rifabutin
Rifabutin (Rfb) is a bactericidal antibiotic medicine primarily used in the treatment of tuberculosis. The medicine is a semi-synthetic derivative of rifamycin S. Its effect is based on blocking the DNA-dependent RNA-polymerase of the bacteria. It is effective against Gram-positive and some Gram-negative bacteria, but also against the highly resistant mycobacteria, e.g. Mycobacterium tuberculosis, M. leprae, and M. avium intracellulare.
Rifampicin
Rifampicin is typically used to treat Mycobacterium infections, including tuberculosis and leprosy.With multidrug therapy used as the standard treatment of leprosy, rifampicin is always used in combination with dapsone and clofazimine to avoid eliciting drug resistance.
Rimsulfuron
Application: Corn Tian Miao before and after seedling, systemic herbicide. Can control corn field most of the annual and perennial gramineous weeds and broad-leaved weeds, such as sorghum, cyperus rotundus, Arabia iron water chestnut, thistle, sedges, prostrate wild wheat, dock folic acid perennial weeds, such as wild oats, weed, hemostatic digitaria, digitaria, French green bristlegrass, grey green bristlegrass, green bristlegrass, whorl green bristlegrass, thousands of gold, l. chinensis, lolium multiflorum, two color sorghum briers, flat blade arm grass, grass, wool millet, autumn annual gramineous weeds such as millet, redroot amaranth and quinoa, amaranth, nodules, chickweed, cleavers, genus amaranthus retroflexus, chamomile, mint, corn poppy, field mustard, twotooth achyranthes root chrysanthemum annual broadleaf weeds.
Risperidone
Risperidone is benzisoxazole derivative,a new generation of antipsychotic medicine. The active ingredient of risperidone is a kind of selective monoamine antagonist with unique properties, which has high affinity to 5-HT2 receptor and dopamine D2 receptor of 5. Risperidone can also be combined with alpha 1- adrenergic receptors and binding to H1 receptors and alpha 2- adrenergic receptors with low affinity. Risperidone does not combine with cholinergic receptor. Risperidone is strong D2 antagonists that can improve schizophrenia positive symptoms, but it caused the locomotor inhibition, and catalepsy to less than the classical antipsychotic medicine.
Rivaroxaban
Rivaroxaban (BAY 59-7939) is an oral anticoagulant invented and manufactured by Bayer; in a number of countries it is marketed as Xarelto. In the United States, it is marketed by Janssen Pharmaceutica. It is an orally activedirect factor Xa inhibitor. Rivaroxaban is well absorbed from the gut and maximum inhibition of factor Xa occurs four hours after a dose. The effects lasts 8 to 12 hours, but factor Xa activity does not return to normal within 24 hours so once-daily dosing is possible.
Ropinirole Hydrochloride API
Ropinirole hydrochloride is DopamineAgonist,it can enhance the effect of dopamine,correct the imbalance of central
Roxithromycin
Roxithromycin is a semi-synthetic macrolide antibiotic. It is used to treat respiratory tract, urinary and soft tissue infections.Roxithromycin has also been tested to possess antimalarial activity.
S-metolachlor
S-Metolachlo CAS: 87392-12-9 178961-20-1 is an organic compound that is widely used as an herbicide.
SAMARIUM
It is quite stable in dry air and forms oxide film on the surface in humid air. It will not decompose if used and stored according to specifications. Avoid contact with acids, oxides, moisture. Soluble in acid, insoluble in water. It is easy to combine with non-metallic elements. Fine powder can self ignite. It exists in nature in the form of trivalent samarium salt. It can be used as neutron absorber, photoelectric equipment and alloy.
SCANDIUM
Scandium is a kind of chemical element, the element symbol is SC, the atomic number is 21, it is a soft, silver white transition metal, melting point 1541 ℃, boiling point 2831 ℃. Soluble in water, it can react with hot water, and darken easily in the air. The main valence is + 3. It is often mixed with gadolinium, erbium and so on. Its output is very small, and its content in the crust is about 0.0005%. Scandium is often used to make special glass and light heat-resistant alloy.
SILICONE RUBBER
Silicone rubber is a kind of synthetic rubber and semi-inorganic polymer elastic material with silicon oxygen structure in the molecular main chain. It is formed by the condensation of organosilicon monomers with two functional groups such as dimethyldichlorosilane after hydrolysis. Silicone rubber is similar to ordinary rubber in appearance, but it has high thermal stability and elasticity. Keep the original characteristics in the range of - 60 ~ 300 ℃. When compressed at high temperature, the shrinkage is very small, and it will return to the original state after the external force is relieved. According to curing methods, silicone rubber can be divided into heat curing type and room temperature curing type.
SODA LIME
Alkali lime, also known as sodium lime, is a white or beige powder, loose and porous, a mixture of calcium oxide (Cao, about 75%), water (H ₂ o, about 20%), sodium hydroxide (NaOH, about 3%), and potassium hydroxide (KOH, about 1%).
SODIUM METASILICATE PENTAHYDRATE
Sodium metasilicate pentahydrate, commonly known as instant water glass, is an inorganic salt product. It is a silicon fine chemical product developed by European and American countries in the 1960s. Ronald Planck company of France, Daxiang company of America and Eka company of Sweden all have tens of thousands of tons of production capacity. It is a non-toxic, tasteless and pollution-free white powder or crystal particle, which is easy to dissolve in water, insoluble in alcohol and acid, has water absorption, and the aqueous solution is alkaline. It is easy to absorb moisture and deliquesce when placed in the air. It has the ability of descaling, emulsifying, dispersing, wetting, permeability and buffering for pH value. It has strong decontamination, strong pH buffering ability, neutralizing acid dirt, emulsifying fat and oil, and inorganic matter It has the function of anti flocculation and anti-corrosion to metals.
SODIUM SULFANILATE
1. Used as analytical reagent and organic synthesis
SOLVENT BLACK 5
Nigrosine is an important raw material for chemical synthesis in dye industry. For a long time, the cotton printing and dyeing factory directly dyed with aniline, and oxidized the cotton fiber to obtain the original color cloth with strong black light and excellent quality. Aniline black is also used in cotton printing, whether it is direct printing cloth or anti-dyeing printing cloth, aniline is lower in cost than dyes, and the color is black, washable and lightfast. It was one of the main production processes in the 1950s.
SUDAN II
Brownish red crystal, soluble in methanol, ethanol, DMSO and other organic solvents, derived from synthetic dyes. Biological staining agents, such as fatty staining of central nervous tissue.
Saccharin Sodium
Colorless to white orthorhombic crystals or white crystalline weathered powder. Odorless or slight smell. It is extremely sweet, even in 10,000 times the aqueous solution, there is still very strong sweetness, the sweetness threshold is about 0.00048%. The sweetness in the dilute solution is about 500 times that of sucrose. It has a sweet taste when the concentration is thin, and a bitter taste when it is thick (greater than 0.026%), so the concentration when used alone should be less than 0.02%. When heated under acidic conditions, the sweetness disappears. And the formation of bitter anthranilic acid. It is easily soluble in water (1g/1.5 ml ) and slightly soluble in ethanol (1g/50 ml ).
Salicylic Acid
Guanidine isothiocyanate is a kind of uncoupler and a kind of strong denaturant of protein. It can dissolve protein and make the secondary structure of protein disappear. The cell structure is degraded and nucleoprotein is separated from nucleic acid rapidly. It is used to denature and lyse cells, extract RNA and DNA, without RNase and DNase activity.
Samarium Oxide
White with yellowish powder. Insoluble in water, soluble in acid. It can be used as material for making metal samarium, magnetic material and memory element, glass additive for infrared absorption, coating in photosensitive material, permanent magnetic material for making samarium cobalt and raw material for producing metal samarium.
Saquinavir Mesylate
Saquinavir mesylate is an antiretroviral drug used together with other medications to treat or prevent HIV/AIDS.
Saracatinib
Saracatinib (AZD0530) is a potent Src inhibitor with IC50 of 2.7 nM, and potent to c-Yes, Fyn, Lyn, Blk, Fgr and Lck; less active for Abl and EGFR (L858R and L861Q).
Scandium Oxide
The chemical formula of scandium oxide is Sc2O3. Property: white solid. It has cubic structure of rare earth sesquioxide. Density 3.864. Melting point 2403 ℃ ± 20 ℃. Insoluble in water, soluble in hot acid. It is prepared by the thermal decomposition of scandium salt. It can be used as evaporation material of semiconductor coating. We make solid-state laser with variable wavelength, high definition TV electron gun, metal halide lamp, etc.
