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ChemWhat: The Global Benchmark in Ultra-High-Purity Rare Earth, Metal Halide, and Chalcogenide Inorganic Reagents
As a globally registered trademark of Watson, ChemWhat has established itself as a rising international leader in the field of ultra-high-purity inorganic reagents. Known for its unwavering commitment to quality, ChemWhat has become a trusted brand among researchers and industries worldwide. Its product line—spanning rare earth halides, other metal halides, and metal chalcogenides—has been widely
Overcoming the “Choke Points” in Semaglutide Side Chain Synthesis with Core Technologies to Enable Efficient GLP-1 Drug Manufacturing
Semaglutide, a groundbreaking product in the GLP-1 drug class, owes its extended half-life and enhanced receptor affinity largely to its unique side chain, Ste-Glu-AEEA-AEEA-OSU (CAS: 1169630-40-3). This side chain covalently modifies the peptide backbone, significantly improving pharmacokinetics and therapeutic performance. However, its complex structure presents two critical synthetic challenges: Leveraging deep expertise in peptide chemistry and
Watson International: A Global Leader in High-Purity PEG Linkers for Antibody-Drug Conjugate (ADC) Innovation
In the realm of modern biopharmaceutical innovation, antibody-drug conjugates (ADCs) represent a promising frontier—one that combines the specificity of monoclonal antibodies with the potency of cytotoxic agents. At the core of this technology lies a critical component: the linker, which bridges the antibody and the drug payload. Among the various types of linkers, polyethylene glycol
Watson Chem Advanced Materials: Your Trusted Partner in High-Performance SAM, NFA, and Organic Electronic Solutions for OPV, OLED, and Perovskite Technologies
In the rapidly evolving field of organic photovoltaics (OPV), perovskite solar cells, and organic electronics, interfacial and molecular engineering play a pivotal role in achieving high efficiency, long-term stability, and device scalability. Watson Chem specializes not only in the custom synthesis and scalable production of self-assembled monolayer (SAM) materials, but also in non-fullerene acceptor (NFA)
ChemWhat Photoinitiators: Shaping the Future of Photocuring with a Comprehensive Product Portfolio and Scenario-Based Solutions Empowering Industrial Innovation
In the rapidly evolving world of photocuring technology, photoinitiators play a pivotal role as core materials, directly influencing curing efficiency, material performance, and application boundaries. As a global leader in photoinitiator solutions, Watson—through its ChemWhat brand—offers a full product lineup in both radical and cationic systems. Backed by deep technical expertise and scenario-based development capabilities,
Watson’s Silane Industry Chain Capability System: Driving Industrial Upgrading Through Molecular Innovation
I. Full-Chain Coverage: Building the “Periodic Table” of the Organosilicon Field Starting from trichlorosilane and silicon tetrachloride, Watson has established a complete technological framework for the silane industry, forming a three-tier product system of “basic raw materials → functional monomers → application derivatives,” covering nine major functional categories: Highlights of Technical Integrity: II. Customization Capability:
Semiconductor Materials
Click on the highlighted cells to explore product information related to the corresponding elements.Watson provides materials such as II-VI, III-V, and halogen compounds.Materials within the same family exhibit similar physical and chemical properties, enabling us to offer customized solutions for binary, ternary, and multi-component compounds, including selected alloys.
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1 1.008 H Hydrogen 2 4.003 He Helium 3 6.94 Li Lithium 4 9.0122 Be Beryllium 5 10.81 B Boron 6 12.011 C Carbon 7 14.007 N Nitrogen 8 15.999 O Oxygen 9 18.998 F Fluorine 10 20.180 Ne Neon 11 22.990 Na Sodium 12 24.305 Mg Magnesium 13 26.982 Al Aluminum 14 28.085 Si Silicon 15 30.974 P Phosphorus 16 32.06 S Sulfur 17 35.45 Cl Chlorine 18 39.948 Ar Argon 19 39.098 K Potassium 20 40.078 Ca Calcium 21 44.956 Sc Scandium 22 47.867 Ti Titanium 23 50.942 V Vanadium 24 51.996 Cr Chromium 25 54.938 Mn Manganese 26 55.845 Fe Iron 27 58.933 Co Cobalt 28 58.693 Ni Nickel 29 63.546 Cu Copper 30 65.38 Zn Zinc 31 69.723 Ga Gallium 32 72.630 Ge Germanium 33 74.922 As Arsenic 34 78.971 Se Selenium 35 79.904 Br Bromine 36 83.798 Kr Krypton 37 85.468 Rb Rubidium 38 87.62 Sr Strontium 39 88.906 Y Yttrium 40 91.224 Zr Zirconium 41 92.906 Nb Niobium 42 95.95 Mo Molybdenum 43 98 Tc Technetium 44 101.07 Ru Ruthenium 45 102.91 Rh Rhodium 46 106.42 Pd Palladium 47 107.87 Ag Silver 48 112.41 Cd Cadmium 49 114.82 In Indium 50 118.71 Sn Tin 51 121.76 Sb Antimony 52 127.60 Te Tellurium 53 126.90 I Iodine 54 131.29 Xe Xenon 55 132.91 Cs Cesium 56 137.33 Ba Barium 57 138.91 La Lanthanum 72 178.49 Hf Hafnium 73 180.95 Ta Tantalum 74 183.84 W Tungsten 75 186.21 Re Rhenium 76 190.23 Os Osmium 77 192.22 Ir Iridium 78 195.08 Pt Platinum 79 196.97 Au Gold 80 200.59 Hg Mercury 81 204.38 Tl Thallium 82 207.2 Pb Lead 83 208.98 Bi Bismuth 84 209 Po Polonium 85 210 At Astatine 86 222 Rn Radon 87 223 Fr Francium 88 226 Ra Radium 89 227 Ac Actinium 104 267 Rf Rutherfordium 105 270 Db Dubnium 106 271 Sg Seaborgium 107 270 Bh Bohrium 108 277 Hs Hassium 109 278 Mt Meitnerium 110 281 Ds Darmstadtium 111 282 Rg Roentgenium 112 285 Cn Copernicium 113 286 Nh Nihonium 114 289 Fl Flerovium 115 290 Mc Moscovium 116 293 Lv Livermorium 117 294 Ts Tennessine 118 294 Og Oganesson 57 138.91 La Lanthanum 58 140.12 Ce Cerium 59 140.91 Pr Praseodymium 60 144.24 Nd Neodymium 61 145 Pm Promethium 62 150.36 Sm Samarium 63 151.96 Eu Europium 64 157.25 Gd Gadolinium 65 158.93 Tb Terbium 66 162.50 Dy Dysprosium 67 164.93 Ho Holmium 68 167.26 Er Erbium 69 168.93 Tm Thulium 70 173.04 Yb Ytterbium 71 174.97 Lu Lutetium 89 227 Ac Actinium 90 232.04 Th Thorium 91 231.04 Pa Protactinium 92 238.03 U Uranium 93 237 Np Neptunium 94 244 Pu Plutonium 95 243 Am Americium 96 247 Cm Curium 97 247 Bk Berkelium 98 251 Cf Californium 99 252 Es Einsteinium 100 257 Fm Fermium 101 258 Md Mendelevium 102 259 No Nobelium 103 262 Lr Lawrencium
Impurity Reference Standards
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- Everolimus
- Tacrolimus
Tacrolimus C4-epimer Diene CAS 104987-11-334
Tacrolimus C4-epimer Diene,104987-11-334,Tacrolimus
Everolimus EP Impurity E CAS 1237826-25-3
Identification Properties Safety Data Specifications & Other Information Links Quick Inquiry Identification CAS Number 1237826-25-3 Name Everolimus EP Impurity E Synonyms (1R,2R)-4-{(2R)-2-[(1R,9S,12S,15R,16E,18R,19R,21R,23S,24E,28E,30S,32S,35R)-1,18-Dihydroxy-19,30-dimethoxy-15,17,21,23,29,35-hexamethyl-2,3,10,14,20-pentaoxo-11,36-dioxa-4-azatricyclo[30.3.1.04,9]hex atriaconta-16,24,26,28-tetraen-12-yl]propyl}-2-methoxycyclohexyl formate [ACD/IUPAC Name](1R,2R)-4-{(2R)-2-[(1R,9S,12S,15R,16E,18R,19R,21R,23S,24E,28E,30S,32S,35R)-1,18-Dihydroxy-19,30-dimethoxy-15,17,21,23,29,35-hexamethyl-2,3,10,14,20-pentaoxo-11,36-dioxa-4-azatricyclo[30.3.1.04,9]hex atriaconta-16,24,26,28-tetraen-12-yl]propyl}-2-methoxycyclohexylformiat [German] [ACD/IUPAC Name]23,27-Epoxy-3H-pyrido[2,1-c][1,4]oxaazacyclohentriacontine-1,5,11,28,29(4H,6H,31H)-pentone, 3-[(1R)-2-[(3R,4R)-4-(formyloxy)-3-methoxycyclohexyl]-1-methylethyl]-9,10,12,13,14,21,22,23,24,25,26,27,32,3 3,34,34a-hexadecahydro-9,27-dihydroxy-10,21-dimethoxy-6,8,12,14,20,26-hexamethyl-, (3S,6R,7E,9R,10R,12R,14S,15E,19E,21S,23S,26R,27R,34aS)- [ACD/Index Name]Formiate de (1R,2R)-4-{(2R)-2-[(1R,9S,12S,15R,16E,18R,19R,21R,23S,24E,28E,30S,32S,35R)-1,18-dihydroxy-19,30-diméthoxy-15,17,21,23,29,35-hexaméthyl-2,3,10,14,20-pentaoxo-11,36-dioxa-4-azatricyclo[30.3. ;1.04,9]hexatriaconta-16,24,26,28-tétraén-12-yl]propyl}-2-méthoxycyclohexyle [French] [ACD/IUPAC Name]1237826-25-3 [RN] SMILES CC1=CC=CC=C[C@@H](C)C[C@@H](C)C(=O)[C@H](OC)[C@H](O)C(C)=C[C@@H](C)C(=O)C[C@H](OC(=O)[C@@H]2CCCCN2C(=O)C(=O)[C@]2(O)O[C@H](C[C@@H]1OC)CC[C@H]2C)[C@H](C)CC1C[C@@H](OC)[C@@H](CC1)OC=O |c:1,t:5,20| StdInChI InChI=1S/C52H79NO14/c1-31-16-12-11-13-17-32(2)43(62-8)28-39-21-19-37(7)52(61,67-39)49(58)50(59)53-23-15-14-18-40(53)51(60)66-44(34(4)26-38-20-22-42(65-30-54)45(27-38)63-9)29-41(55)33(3)25-36(6)47(57)48(64-10)46(56)35(5)24-31/h11-13,16-17,25,30-31,33-35,37-40,42-45,47-48,57,61H,14-15,18-24,26-29H2,1-10H3/b13-11?,16-12+,32-17+,36-25+/t31-,33-,34-,35-,37-,38?,39+,40+,42-,43+,44+,45-,47-,48+,52-/m1/s1 StdInChIKey IUPNCBWADBCXHV-XONPCIIHSA-N Molecular Formula C52H79NO14 Molecular Weight 942.182
Everolimus EP Impurity C CAS 908340-97-6
Identification Properties Safety Data Specifications & Other Information Links Quick Inquiry Identification CAS Number 159351-69-64 Name Everolimus EP Impurity C Properties Appearance White Solid Safety Data RIDADR NONH for all modes of transport WGK Germany 3 Specifications and Other Information of Our Everolimus EP Impurity C CAS 159351-69-64 Identification Methods HNMR, MS Purity 95% min
Everolimus EP Impurity D CAS 2760174-96-5
Identification Properties Safety Data Specifications & Other Information Links Quick Inquiry Identification CAS Number 159351-69-67 Name Everolimus EP Impurity D Properties Appearance White Solid Safety Data RIDADR NONH for all modes of transport WGK Germany 3 Specifications and Other Information of Our Everolimus EP Impurity D CAS 159351-69-67 Identification Methods HNMR, MS Purity 90% min
Diagnostic Reagents
Silver Nanowire (Agnw) Development And Scaled Up
Silver nanowire (Agnw) developed by Polyberg, is widely used in Nanosilver Face Masks,
Air/Water Purifier and Silver Nanowire Touch Panels
Other Products
About Agnw CAS No: 7440-22-4![]()
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Silver nanowire (Agnw) is poised to become an essential component of today’s most advanced technologies. Why? To begin with, silver nanowires do their job better than competing materials boasting high transmission rates and low resistance. This combination enables 10-finger touch, brighter displays, and longer battery life—all critical elements in improving the user experience. Second, the cost of silver nanowire is low in comparison to other similar materials. Silver is a plentiful material, manufacturing is inexpensive, and mass production is far from being an issue. Lastly, silver nanowires are infinitely flexible making them very versatile. Thin and curved is in wearables, kiosks, solar panels, gaming machines, point-of-sale devices, automobile displays, and GPS systems, all of these technologies can benefit from being thinner and more flexible with the help of silver nanowire.![]()
#Ag
Silver Nanowire (Agnw) 7440-22-4
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About Agnw CAS No: 7440-22-4 Silver nanowire (Agnw) is poised to become an essential component of today’s most advanced technologies. Why? To begin with, s ChemWhat: The Global Benchmark in Ultra-High-Purity Rare Earth, Metal Halide, and Chalcogenide Reagents![]()
As a globally registered trademark of Watson, ChemWhat has established itself as a rising international leader in the field of ultra-high-purity inorganic reagents. Known for its unwavering commitment to quality, ChemWhat has become a trusted brand among researchers and industries worldwide.
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As a globally registered trademark of Watson, ChemWhat has established itself as a rising international leader in the field of ultra-high-purity inorganic reage ChemWhat: The Global Benchmark in Ultra-High-Purity Rare Earth, Metal Halide, and Chalcogenide Inorganic Reagents
www.watson-int.com
As a globally registered trademark of Watson, ChemWhat has established itself as a rising international leader in the field of ultra-high-purity inorganic reage
The Global Benchmark in Ultra-High-Purity Rare Earth, Metal Halide, and Chalcogenide Reagents - As a globally registered trademark of Watson, ChemWhat has established itself as a rising international leader in the field of ultra-high-purity inorganic rea…
Overcoming the Choke Points in Semaglutide Side Chain Synthesis with Core Technologies to Enable Eff - To address the diverse process requirements in semaglutide side chain synthesis, Watson offers two intermediate options: Fmoc-AEEA (CAS: 166108-71-0) a…
Watson A Global Leader in High Purity PEG Linkers for Antibody Drug Conjugate ADC Innovation - In the fast-evolving landscape of targeted cancer therapies, polyethylene glycol (PEG) linkers play a pivotal role in the design and efficacy of antibody-dru…
The Global Benchmark in Ultra-High-Purity Rare Earth, Metal Halide, and Chalcogenide Reagents
Overcoming the Choke Points in Semaglutide Side Chain Synthesis with Core Technologies to Enable Eff
Watson A Global Leader in High Purity PEG Linkers for Antibody Drug Conjugate ADC Innovation
High Performance SAM, NFA, and Organic Electronic Solutions for OPV, OLED, and Perovskite Technologi
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