Strong R&D Capacity
With technical capacities from FCAD R&D companies, Watson has expertise to support a vast range of custom synthesis service.READ MORE
Company News
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:
Watson Chem: Empowering Global Clients with Innovative Chiral Catalysis Technologies
Chiral catalysis plays a crucial role in fine chemicals and pharmaceutical synthesis. As a technology pioneer in this field, Watson Chem leverages years of technical expertise and innovation to provide global clients with highly efficient and reliable chiral catalysts and catalysis development services, helping them seamlessly transition from laboratory research to industrial-scale production. Sadphos: A
Acetylenic Alcohols: Emerging Opportunities and Watson’s Competitive Edge
Acetylenic alcohols are gaining increasing importance across various industries due to their unique chemical properties and broad applicability. As specialized compounds containing both alkyne and hydroxyl functional groups, these molecules offer exceptional performance in reaction control, corrosion protection, and formulation enhancement. Their versatility and efficiency make them indispensable in high-performance industrial applications, modern chemical synthesis,
Isooctanoates and Neodecanoates: Multi-Industry Applications and Watson’s Technological Advantages
In modern industrial applications, isooctanoates and neodecanoates are widely used across various industries due to their exceptional chemical stability and excellent solubility. These industries include resins, rubber catalysts, coatings and paint additives, driers, plastic heat stabilizers, and fuel combustion aids. As a leader in advanced chemical solutions, Watson has accumulated extensive technical expertise in these
GalNAc-L96 – A Key Molecule for Efficient RNA Targeted Delivery
Introduction to GalNAc-L96 GalNAc-L96 (CAS 1159408-62-4) is a triantennary N-acetylgalactosamine (GalNAc) ligand primarily used for the synthesis of GalNAc-siRNA. GalNAc is a specific ligand for ASGPR (Asialoglycoprotein Receptor), enabling liver-targeted delivery, which is a crucial aspect of modern RNA delivery technology. Applications and Advantages of GalNAc-L96 Precise Liver-Targeted Delivery: ASGPR is highly expressed on liver
Why ChemWhat’s Molecular Biology Reagents Are the Most Cost-Effective Choice in High-Quality Reagents
In the competitive landscape of molecular biology reagents, researchers demand not only precision and reliability but also cost-effectiveness. ChemWhat’s molecular biology reagents stand out as a premier choice, delivering exceptional performance at an unmatched value. This article explores how ChemWhat achieves its balance of high quality and affordability by focusing on two key aspects: raw
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.
Scroll horizontally to view more
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
- All
- 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
Watson’s Silane Industry Chain Capability System: Driving Industrial Upgrading Through Molecular Innovation
www.watson-int.com
I. Full-Chain Coverage: Building the “Periodic Table” of the Organosilicon Field Starting from trichlorosilane and silicon tetrachloride, Watson has esta Watson’s Silane Industry Chain Capability System: Driving Industrial Upgrading Through Molecular Innovation![]()
I.
www.fcad.com
I. Full-Chain Coverage: Building the “Periodic Table” of the Organosilicon Field Starting from trichlorosilane and silicon tetrachloride, Watson has esta Watson Chem: Empowering Global Clients with Innovative Chiral Catalysis Technologies
Watson Chem: Empowering Global Clients with Innovative Chiral Catalysis Technologies
www.watson-int.com
Chiral catalysis plays a crucial role in fine chemicals and pharmaceutical synthesis. As a technology pioneer in this field, Watson Chem leverages years of tech
Why ChemWhat’s Molecular Biology Reagents Are the Most Cost Effective Choice in High Quality Reagent - In the competitive landscape of molecular biology reagents, researchers demand not only precision and reliability but also cost-effectiveness. ChemWhat…
Watson Chem Pioneering Advanced Materials for a Sustainable Future - Watson Chem specializes in a wide array of compound semiconductors, including binary, ternary, quaternary, quinary, and even multinary compounds with purities ranging from 3N to an im…
Innovating to Meet Diverse Industry Needs with Cost-Effective and High-Precision Ferene & Ferrozine - Watson, a global leader in advanced chemical materials, has long been recognized for its top-tier Ferene (CAS Number: 79551-14-7) and Ferrozine (CAS Num…
Silane Industry Chain Capability System - Driving Industrial Upgrading Through Molecular Innovation
Empowering Global Clients with Innovative Chiral Catalysis Technologies
GalNAc L96 A Key Molecule for Efficient RNA Targeted Delivery
© 2025 WATSON INTERNATIONAL LIMITED. All Rights Reserved. This site and all content are protected by international Copyright laws. Third party logos and marks appearing on this website are trademarks and/or registered trademarks of their respective owners and licensors, and all rights therein and thereto are reserved to such entities.