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New Products

J&K Scientific is committed to research and innovation. We are proud of our independent new product achievements as well as our development partnership with our customers and distributors. For many years J&K has invited companies to collaborate and share in market opportunities by contributing and co-developing products. Our product range grows every year with thousands of new compounds and derivatives added to our existing list of over 500,000 ultrafine materials, pharmaceutical chemicals, biochemicals and specialty chemical products for science and industry.
  • Latest Products
  • September 15 2016
  • September 01 2016
  • August 15 2016


Nano-microspheres are particles that range in size from 5nm to 1000μm. They are widely used as drug carriers, enzyme carriers, conductive balls or magnetic beads in biological pharmaceuticals, food safety testing and medical diagnostics.

Easy surface modification
Large specific surface area
Excellent biocompatibility
Good stability in physiological medium
Related Categories
Stains and Dyes
Fluorescent Reagents

Feathered Products:

structure Product no. description cas pricing
1924547 Amino Fe3O4 magnetic beads , 0.1 - 0.2 μm, suspended in PBS buffer solution 1317-61-9 Pricing
914411 Amino Fe3O4 magnetic beads, 0.2 - 0.3 μm, suspended in PBS buffer solution 1317-61-9 Pricing
1924551 Amino polystyrene magnetic beads, 1 - 2 μm, suspended in PBS buffer solution Pricing
913531 Amino polystyrene microspheres, 4 μm, 2.5%(w/v)suspended in deionized water 9003-53-6 Pricing
943117 Carboxylated Fe3O4 magnetic beads, 99.8%, 0.2 - 0.3 μm, suspended in PBS buffer solution 1317-61-9 Pricing
943871 Hydroxy Fe3O4 magnetic beads, 0. 2- 0.3 μm, suspended in PBS buffer solution 1317-61-9 Pricing
1924550 Hydroxy Fe3O4 magnetic beads, 0.1 - 0.2 μm, suspended in PBS buffer solution 1317-61-9 Pricing
952804 Orange fluorescent microspheres, 5 μm, 1%(w/v)suspended in deionized water Pricing
930141 Polystyrene microspheres, 0.1 μm, 2.5%(w/v)suspended in deionized water 9003-53-6 Pricing
1927295 Red fluorescent microspheres, 1 μm, 1%(w/v)suspended in deionized water Pricing
775567 Silica microspheres, 1 μm, 2.5%(w/v)suspended in 50% ethanol solution 60676-86-0 Pricing

Reagents for Protein Structure Analysis

With the completion of the Human Genome Project (HGP), the focus of biological science has turned from Genomics to Proteomics. The investigation of protein structure and function has emerged as an exciting research area in the post-genome era. Such as incorporation of selenium atoms into proteins has been a staple method for protein crystallography. Methionine (Met) can be replaced by Selenomethionine (SeMet) in this process by means of isomorphous substitution without any negative effect.


Feathered Products:

structure Product no. description cas pricing
114587 L-Selenomethionine, 98% 3211-76-5 Pricing
929073 Dabsyl chloride, 98%, derivatization grade 56512-49-3 Pricing
164579 5-Dimethylamino-1-naphthalenesulfonyl chloride, 98% 605-65-2 Pricing
158799 Poly(ethylene glycol), average M.W. 6,000 25322-68-3 Pricing
105893 Sodium dodecyl sulfate, 99%, for biochemistry 151-21-3 Pricing
407715 Tris(hydroxymethyl)aminomethane, 99% 77-86-1 Pricing


Quinoline and its derivatives are useful in many fields of chemistry, such as the preparation of nicotinic acid and hydroxyl quinoline drugs, phthalocyanine blue pigment, photosensitive dyes, pesticides and rubber accelerators. They can also be employed as solvents, impregnating agents, corrosion inhibitors, as well as for many other uses.


Feathered Products:

structure Product no. description cas pricing
100517 8-Aminoquinoline, 98% 578-66-5 Pricing
417222 7,8-Benzoquinoline, 98% 230-27-3 Pricing
189789 8-Hydroxyquinoline, 99% 148-24-3 Pricing
116576 8-Hydroxyquinoline-2-carboxaldehyde, 98% 14510-06-6 Pricing
107410 2-Hydroxy-4-(trifluoromethyl)quinoline, 98% 25199-84-2 Pricing
166750 2-Quinolinecarboxaldehyde, 98% 5470-96-2 Pricing
219575 4-Quinolinecarboxaldehyde, 97% 4363-93-3 Pricing
258165 2-Quinoline carboxylic acid, 99% 93-10-7 Pricing
227214 1,2,3,4-Tetrahydroisoquinoline, 97% 91-21-4 Pricing
135672 1,2,3,4-Tetrahydroquinoline, 98% 635-46-1 Pricing

Glycosyl Donors and Synthesis Reagents

Carbohydrates are the most extensive and widely used organic compounds in nature. Thus, the limited sources of glycans samples set a bottleneck to structural and functional studies of bioactive glycans. Fortunately, there has been a great effort invested in establishing chemical and chemo-enzymatic approaches for the synthesis of oligosaccharides, which provides powerful access to obtaining glycans and glycoconjugates for biological investigations by glycosyl donors and synthesis reagents.


Feathered Products:

structure Product no. description cas pricing
263935 1-O-Acetyl-2,3,5-tri-O-benzoyl-β-D-ribofuranose, 98% 6974-32-9 Pricing
151258 p-Anisaldehyde dimethyl acetal, 98% 2186-92-7 Pricing
942961 Bis(2-methoxyethyl)aminosulphur trifluoride, 95% 202289-38-1 Pricing
362315 tert-Butylchlorodiphenylsilane, 98% 58479-61-1 Pricing
1000173 4-tert-Butyl-2,6-dimethylphenylsulphur trifluoride, 90% 947725-04-4 Pricing
614292 Dibenzyl azodicarboxylate, 95% 2449-05-0 Pricing
168478 Diethylaminosulfur trifluoride, 95% 38078-09-0 Pricing
186745 1,2,3,5-Tetra-O-acetyl-β-D-ribofuranose, 98% 13035-61-5 Pricing
147567 1,3,5-Tri-O-benzoyl-2-deoxy-2-fluoro-α-D-arabinofuranose, 98% 97614-43-2 Pricing
221208 Trichloroacetonitrile, 98% 545-06-2 Pricing

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