HOME
Tailor-made PEG Linkers
conjugate (ADC) development projects. All chemical linkers are of >95% purity standard.
IVD Material Development
including enzymes, carbohydrates, antigens, antibodies and custom biochemicals.
Development
ensure of a high success rate for custom synthesis.
of single or total impurities. And we always consider feasibility of scale-up production in lab trial.
Development
IVD Materials
2-Azido-2-deoxy-D-galactopyranose CAS 68733-26-6
2-Azido-2-deoxy-D-galactopyranose,68733-26-6,2-Azido-2-deoxy-D-galactose
5-Bromo-4-chloro-3-indoxyl myo-inositol-1-phosphate CAS 212515-11-2
5-Bromo-4-chloro-3-indoxyl myo-inositol-1-phosphate,212515-11-2,B 7404,Indole substrate
Recombinant Human Monokine Induced by Interferon-gamma/CXCL9 (rHuMIG/CXCL9) CAS 201-09-1816
Recombinant Human Monokine Induced by Interferon-gamma/CXCL9,rHuMIG/CXCL9,Monokine-like Protein,Q07325,4283
Recombinant Bifunctional ligase/repressor BirA, His (rBirA,His) CAS 418-018-1816
Recombinant Bifunctional ligase/repressor BirA, His,rBirA,His,,,
Recombinant Human B-Cell Maturation Antigen/TNFRSF17 (rHuBCMA/TNFRSF17) CAS 103-10-1816
Recombinant Human B-Cell Maturation Antigen/TNFRSF17,rHuBCMA/TNFRSF17,TNFRSF17, BCM, CD269,Q02223,608
5-Bromo-4-chloro-3-indolyl phosphate disodium salt CAS 102185-33-1
5-Bromo-4-chloro-3-indolyl phosphate disodium salt,102185-33-1,,Indole substrate
Let's Overcome This Pandemic Together in 2022
Watson will go on working with our partners globally to fight against Covid-19,
and hope to overcome it completely in 2022.
APIs and Intermediates
Antibody/Antigen Rapid Test Kits
VTM Kit | GMP and FDA Approved
Polyethylene Glycol (PEG) Linkers
Nucleotides
UDP-Xyl.2Na CAS 108320-89-4(3616-06-6)
UDP-Xyl.2Na,108320-89-4,Uridine 5-diphospho-xylose disodium salt
Adenosine 5′-triphosphate disodium salt CAS 987-65-5
Adenosine 5′-triphosphate disodium salt,987-65-5,5′-IDP,2K ; IDP- K2 ;
5′- Inosine diphosphatedipotassium salt,C10H14N5Na2O13P3
5BTT CAS 21871-47-6
5-Benzylthio-1H-Tetrazole,21871-47-6,5-[(Phenylmethyl)thio]-1H-tetrazole,C8H8N4S
Uridine-5′-diphosphate glucose CAS 117756-22-6
Uridine-5′-diphosphate glucose,117756-22-6,UDP-G,C15H22N2O17Na2
Inosine-5′-triphosphatetrisodiumsalt CAS 35908-31-7
Inosine-5′-triphosphatetrisodiumsalt,35908-31-7,ITP.Na3,C10H12N4Na3O14P3
Uridine 5′-monophosphate CAS 58-97-9
Uridine 5′-monophosphate,58-97-9,5′-UMP ; 5′-Uridylic Acid ;
Uridine-5′-monophosphoric acid;,C9H13N2O9P
Impurity Reference Standards
- All
- Arecoline Hydrobromide
- Famotidine
- Metronidazole
- NALFURAFINE
- Paroxetine
- Roxithromycin
Paroxetine EP Impurity B CAS 110429-35-11
Paroxetine EP Impurity B,110429-35-11,Paroxetine
Roxithromycin Impurity G CAS 80214-83-11003008
Roxithromycin Impurity G,80214-83-11003008,Roxithromycin
Famotidine EP Impurity B CAS 89268-62-2
Famotidine EP Impurity B,89268-62-2,Famotidine
Metronidazole Impurity D( EP) CAS 5006-68-8
Metronidazole Impurity D( EP),5006-68-8,Metronidazole
Prostaglandin
Travoprost CAS 157283-68-6
Identification Properties Safety Data Specifications & Other Information Links Quick Inquiry Identification CAS Number 157283-68-6 Name Travoprost Synonyms (+/-)-16-(M-TRIFLUOROMETHYLPHENOXY)TETRANORPROSTAGLANDIN F2 15(S)-FLU-IPR 15(S)-FLUPROSTENOL ISOPROPYL ESTER (+)-9ALPHA,11ALPHA,15R-TRIHYDROXY-16-(3-(TRIFLUOROMETHYL)PHENOXY)-17,18,19,20-TETRANOR-PROSTA-5Z,13E-DIEN-1-OIC ACID, ISOPROPYL ESTER 9ALPHA,11ALPHA,15S-TRIHYDROXY-16(3-(TRIFLUOROMETHYL)PHENOXY)-17,18,19,20-TETRANOR-PROSTA-5Z,13E-DIEN-1-OIC ACID, ISOPROPYL ESTER (+)-FLUPROSTENOL ISOPROPYL ESTER FLUPROSTENOL ISOPROPYL ESTER FLU-IPR 1-methylethyl (5Z)-7-[(1R,2R,3R,5S)-3,5-dihydroxy-2-{(1E,3R)-3-hydroxy-4-[3-(trifluoromethyl)phenoxy]but-1-en-1-yl}cyclopentyl]hept-5-enoate Travatan Travatan Z Molecular Structure SMILES FC(F)(F)c2cc(OC[C@H](O)/C=C/[C@@H]1[C@H]([C@@H](O)C[C@H]1O)C\C=C/CCCC(=O)OC(C)C)ccc2 StdInChI InChI=1S/C26H35F3O6/c1-17(2)35-25(33)11-6-4-3-5-10-21-22(24(32)15-23(21)31)13-12-19(30)16-34-20-9-7-8-18(14-20)26(27,28)29/h3,5,7-9,12-14,17,19,21-24,30-32H,4,6,10-11,15-16H2,1-2H3/b5-3-,13-12+/t19-,21-,22-,23+,24-/m1/s1 StdInChIKey MKPLKVHSHYCHOC-AHTXBMBWSA-N Molecular Formula C26H35F3O6 Molecular Weight 500.5477
Cloprostenol isopropyl ester CAS 157283-66-4
Identification Properties Safety Data Specifications andamp ; Other Information Links Identification CAS Number 157283-66-4 Name Cloprostenol isopropyl ester Synonyms (5Z)-7-{(1R,2R,3R,5S)-2-[(3R)-4-(3-Chlorophénoxy)-3-hydroxy-1-butén-1-yl]-3,5-dihydroxycyclopentyl}-5-hepténoate d’isopropyle [French] [ACD/IUPAC Name] 5-Heptenoic acid, 7-[(1R,2R,3R,5S)-2-[(3R)-4-(3-chlorophenoxy)-3-hydroxy-1-buten-1-yl]-3,5-dihydroxycyclopentyl]-, 1-methylethyl ester, (5Z)- [ACD/Index Name] Isopropyl (5Z)-7-{(1R,2R,3R,5S)-2-[(3R)-4-(3-chlorophenoxy)-3-hydroxy-1-buten-1-yl]-3,5-dihydroxycyclopentyl}-5-heptenoate [ACD/IUPAC Name] Isopropyl-(5Z)-7-{(1R,2R,3R,5S)-2-[(3R)-4-(3-chlorphenoxy)-3-hydroxy-1-buten-1-yl]-3,5-dihydroxycyclopentyl}-5-heptenoat [German] [ACD/IUPAC Name] (+)-9?,11?,15R-trihydroxy-16-(3-chlorophenoxy)-17,18,19,20-tetranor-prosta-5Z,13E-dien-1-oic acid, isopropyl ester (+)-Cloprostenol isopropyl ester 157283-66-4 [RN] ISOPROPYL CLOPROSTENATE Molecular Structure SMILES CC(C)OC(=O)CCC/C=C\C[C@H]1[C@H](C[C@H]([C@@H]1C=C[C@H](COc2cccc(c2)Cl)O)O)O StdInChI InChI=1S/C25H35ClO6/c1-17(2)32-25(30)11-6-4-3-5-10-21-22(24(29)15-23(21)28)13-12-19(27)16-31-20-9-7-8-18(26)14-20/h3,5,7-9,12-14,17,19,21-24,27-29H,4,6,10-11,15-16H2,1-2H3/b5-3-,13-12?/t19-,21-,22-,23+,24-/m1/s1 StdInChIKey
Prostaglandin intermediates CAS 946081-35-2
Identification Properties Safety Data Specifications and Other Information Links Identification CAS Number 946081-35-2 Name Prostaglandin intermediates Molecular Structure Application Used as the pharmaceutical intermediates of Prostaglandin. Links Quick Inquiry Fill out our inquiry form and one of our experts will be in touch with you shortly (Please change screen to horizontal for complete browsing if you
D-Cloprostenol Sodium CAS 62561-03-9
(+)-Cloprostenol Sodium,62561-03-9,sodium (5Z)-7-{(1R,2R,3R,5S)-2-[(1E,3R)-4-(3-chlorophenoxy)-3-hydroxybut-1-en-1-yl]-3,5-dihydroxycyclopentyl}hept-5-enoate
DECHLORO DIHYDROXYDIFLUORO ETHYLCLOPROSTENOLAMIDE CAS 1185851-52-8
Identification Properties Safety Data Specifications andamp ; Other Information Links Identification CAS Number 1185851-52-8 Name DECHLORO DIHYDROXYDIFLUORO ETHYLCLOPROSTENOLAMIDE Synonyms (5Z)-7-{(1R,2R,3R,5S)-2-[(1E)-3,3-Difluor-4-phenoxy-1-buten-1-yl]-3,5-dihydroxycyclopentyl}-N-ethyl-5-heptenamid [German] [ACD/IUPAC Name] (5Z)-7-{(1R,2R,3R,5S)-2-[(1E)-3,3-Difluoro-4-phenoxy-1-buten-1-yl]-3,5-dihydroxycyclopentyl}-N-ethyl-5-heptenamide [ACD/IUPAC Name] (5Z)-7-{(1R,2R,3R,5S)-2-[(1E)-3,3-Difluoro-4-phénoxy-1-butén-1-yl]-3,5-dihydroxycyclopentyl}-N-éthyl-5-hepténamide [French] [ACD/IUPAC Name] 5-Heptenamide, 7-[(1R,2R,3R,5S)-2-[(1E)-3,3-difluoro-4-phenoxy-1-buten-1-yl]-3,5-dihydroxycyclopentyl]-N-ethyl-, (5Z)- [ACD/Index Name] (Z)-7-[(1R,2R,3R,5S)-2-[(E)-3,3-difluoro-4-phenoxybut-1-enyl]-3,5-dihydroxycyclopentyl]-N-ethylhept-5-enamide 1185851-52-8 [RN] Tafluprost ethyl amide UNII-JJG9Y3YD25 Molecular Structure SMILES CCNC(=O)CCC/C=C\C[C@H]1[C@H](C[C@H]([C@@H]1/C=C/C(COc2ccccc2)(F)F)O)O StdInChI InChI=1S/C24H33F2NO4/c1-2-27-23(30)13-9-4-3-8-12-19-20(22(29)16-21(19)28)14-15-24(25,26)17-31-18-10-6-5-7-11-18/h3,5-8,10-11,14-15,19-22,28-29H,2,4,9,12-13,16-17H2,1H3,(H,27,30)/b8-3-,15-14+/t19-,20-,21+,22-/m1/s1 StdInChIKey VJZKLIPANASSBD-MSHHKXPZSA-N Molecular Formula C24H33F2NO4 Molecular Weight 437.52 Properties Appearance Colorless
Chiral Catalysts and Ligands
- All
- Chiral Catalysts & Ligands
- Chiral Phosphoric Acids- Binol
- Chiral Phosphoric Acids-H8-Binol
- Electronic Chemicals
- For OLED
- Intermediates
- Performance Products
- Pharmaceutical Chemicals
- Products & Industries
- Proline-Based Organocatalysts-Si-R
R-4-oxide-4-hydroxy-2,6-bis(4-Methoxyphenyl)-Dinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepin CAS 695162-88-0
R-4-oxide-4-hydroxy-2,6-bis(4-Methoxyphenyl)-Dinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepin,695162-88-0,
S-4-oxide-4-hydroxy-2,6-di-1-naphthalenyl-Dinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepin CAS 929097-93-8
S-4-oxide-4-hydroxy-2,6-di-1-naphthalenyl-Dinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepin,929097-93-8,
R-3,3′-Bis(triphenylsilyl)-5,5′,6,6′,7,7′,8,8′-Octahydro-1,1′-bi-2-naphthyl phosphate CAS 957790-94-2
R-3,3′-Bis(triphenylsilyl)-5,5′,6,6′,7,7′,8,8′-Octahydro-1,1′-bi-2-naphthyl phosphate,957790-94-2,
R-4-oxide-4-hydroxy-2,6-bis[4-(trifluoroMethyl)phenyl]-Dinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepin CAS 791616-59-6
R-4-oxide-4-hydroxy-2,6-bis[4-(trifluoroMethyl)phenyl]-Dinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepin,791616-59-6,
2-(((tert-butyldimethylsilyl)oxy)di(naphthalen-2-yl)methyl)pyrrolidine CAS WICPC00029
2-(((tert-butyldimethylsilyl)oxy)di(naphthalen-2-yl)methyl)pyrrolidine,WICPC00029,
S-2-(4-fluorocyclohexyl)-6-(4-fluorophenyl)-4-hydroxydinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepine 4-oxide CAS 915038-14-1
S-2-(4-fluorocyclohexyl)-6-(4-fluorophenyl)-4-hydroxydinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepine 4-oxide,915038-14-1,
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
Materials for Biodegradable Plastics
2,5-bis(aminomethyl)furan CAS 2213-51-6
Identification Properties Safety Data Specifications andamp ; Other Information Links Identification CAS Number 2213-51-6 Name 2,5-bis(aminomethyl)furan Synonyms 2,5-Furandimethanamine [ACD/Index Name] 2,5-Furandiyldimethanamin [German] [ACD/IUPAC Name] 2,5-Furandiyldimethanamine [ACD/IUPAC Name] 2,5-Furanediyldiméthanamine [French] [ACD/IUPAC Name] 2,5-Bis(aminomethyl)furan 2213-51-6 [RN] Aminomethyl-5 furfurylamine-2 C-(5-Aminomethyl-furan-2-yl)-methylamine furan-2,5-diyldimethanamine SMILES c1cc(oc1CN)CN StdInChI InChI=1S/C6H10N2O/c7-3-5-1-2-6(4-8)9-5/h1-2H,3-4,7-8H2 StdInChIKey VKLGKDZCKSMSHG-UHFFFAOYSA-N Molecular Formula C6H10N2O Molecular Weight C6H10N2O Properties Appearance Off-white to white powder Specifications and
2,5-Furandimethanol CAS 1883-75-6
Identification CAS Number 1883-75-6 Name 2,5-Furandimethanol Synonyms 2,5-Bis(hydroxymethyl)furan 2,5-Di(hydroxymethyl)furan 5-(hydroxymethyl)-furfuryl alcohol (5-Hydroxymethyl-furan-2-yl)-methanol [5-(hydroxymethyl)-2-furyl]methan-1-ol [5-(hydroxymethyl)furan-2-yl]methanol 2,5-FDM furfuryl alcohol, 5-hydroxymethyl- SMILES OCc1oc(cc1)CO StnInChI InChI=1S/C6H8O3/c7-3-5-1-2-6(4-8)9-5/h1-2,7-8H,3-4H2 StdInChIKey DSLRVRBSNLHVBH-UHFFFAOYSA-N EINECS Number 217-544-1 Molecular Formula C6H8O3 Molecular Weight 128.13 Properties Appearance White or off-white powder Melting Point 74-77°C Flash Point 120.333°C Boiling Point 275.358°C at 760mmHg Density 1.283g/ml Safety Data Symbol GHS07 Signal Word Warning
2,5-dihydroxymethyl tetrahydrofuran CAS 104-80-3
Identification Properties Safety Data Specifications andamp ; Other Information Links Identification CAS Number 104-80-3 Name 2,5-dihydroxymethyl tetrahydrofuran Synonyms 2,5-Anhydro-3,4-dideoxyhexitol [ACD/IUPAC Name] 2,5-Anhydro-3,4-didesoxyhexitol [German] [ACD/IUPAC Name] 2,5-Anhydro-3,4-didésoxyhexitol [French] [ACD/IUPAC Name] 2,5-dihydroxymethyltetrahydrofuran 203-239-0 [EINECS] Hexitol, 2,5-anhydro-3,4-dideoxy- [ACD/Index Name] ((2R,5S)-Tetrahydrofuran-2,5-diyl)dimethanol (5-Hydroxymethyl-tetrahydro-furan-2-yl)-methanol (cis-Tetrahydrofuran-2,5-diyl)dimethanol (tetrahydrofuran-2,5-diyl)dimethanol [104-80-3] [2144-40-3] [5-(hydroxymethyl)oxolan-2-yl]methan-1-ol [5-(hydroxymethyl)oxolan-2-yl]methanol [5-(Hydroxymethyl)tetrahydrofuran-2-yl]methanol 2,5-Bis[hydroxymethyl]tetrahydrofuran 2,5-BISHYDROXYMETHYL TETRAHYDROFURAN 2,5-Dihydroxymethyl tetrahydrofuran 2,5-Dihydroxymethyl Tetrahydrofuran (en) 2,5-Furandimethanol, tetrahydro- 2,5-Tetrahydrofurandimethanol 34957-72-7 [RN]
Dimethyl Furan-2,5-dicarboxylate (FDME) CAS 4282-32-0
DimethylFuran-2,5-dicarboxylate,4282-32-0,,C8H8O5
5-hydroxymethylfurfural CAS 67-47-0
Identification CAS Number 67-47-0 Name 5-Hydroxymethylfurfural Synonyms HMF 5-(Hydroxymethyl)-2-furaldehyde Molecular Structure SMILES c1cc(oc1CO)C=O StdInChI InChI=1S/C6H6O3/c7-3-5-1-2-6(4-8)9-5/h1-3,8H,4H2 StdInChIKey NOEGNKMFWQHSLB-UHFFFAOYSA-N Molecular Formula C6H6O3 Molecular Weight 126.11 EINECS Number 200-654-9 Flavis Number 13.139 Beilstein Registry Number 110889 MDL Number MFCD00003234 Properties Appearance Yellow or off-yellow powder Refractive index n20/D 1.562(lit.) Boiling Point 114-116 °C/1 mmHg(lit.) Melting Point 28-34 °C(lit.) Flash Point 79 °C Density 1.243 g/mL at 25 °C(lit.) Safety Data
2,5-Furandicarboxylic acid CAS 3238-40-2
Identification CAS Number 3238-40-2 Name 2,5-Furandicarboxylic acid Synonyms Furan-2,5-dicarboxylic acidFDCA Molecular Structure SMILES O=C(O)c1oc(C(=O)O)cc1 StnInChI InChI=1S/C6H4O5/c7-5(8)3-1-2-4(11-3)6(9)10/h1-2H,(H,7,8)(H,9,10) StdInChIKey CHTHALBTIRVDBM-UHFFFAOYSA-N EINECS Number 221-800-8 MDL Number MFCD00016582 Molecular Formula C6H4O5 Molecular Weight 156.09 Properties Appearance Ultra-white powder Melting Point >300 °C Flash Point 207.324 °C Boiling Point 419.199 °C at 760 mmHg Density 1.604 g/ml Safety Data Symbol GHS07 Signal Word Warning Hazard Statements H315-H319-H335 Precautionary Statements
Norfloxacin EP Impurity B CAS 70458-96-77004003
Norfloxacin EP Impurity B CAS 70458-96-77004003
www.watson-int.com
Norfloxacin EP Impurity B,70458-96-77004003,Norfloxacin Moxifloxacin Impurity 23 CAS 354812-41-27002014
Moxifloxacin Impurity 23 CAS 354812-41-27002014
www.watson-int.com
Moxifloxacin Impurity 23,354812-41-27002014,Moxifloxacin Moxifloxacin Impurity 32 CAS 172602-83-4
Moxifloxacin Impurity 32 CAS 172602-83-4
www.watson-int.com
Moxifloxacin Impurity 32,172602-83-4,Moxifloxacin
5-Bromo-4-chloro-3-indolyl beta-D-cellobioside CAS 177966-52-8
https://www.watson-int.com/5-bromo-4-chloro-3-indolyl-beta-d-cellobioside-cas-177966-52-8-2/
5-Bromo-4-chloro-3-indolyl b-D-lactopyranoside CAS 2200269-31-2
https://www.watson-int.com/5-bromo-4-chloro-3-indolyl-b-d-lactopyranoside-cas-2200269-31-2/
3-(2-Bromoethyl)indole CAS 3389-21-7
https://www.watson-int.com/3-2-bromoethylindole-cas-3389-21-7/
© 2022 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.