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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
Recombinant Proteins
Biotinylated Mouse IL-23A Protein, Accession : Q9EQ14
Biotinylated Mouse IL-23A Protein,Q9EQ14,Val22-Ala196
Biotinylated Mouse CD5 Protein (Primary Amine Labeling), Accession : P13379
Biotinylated Mouse CD5 Protein (Primary Amine Labeling),P13379,Ser25-Pro371
Biotinylated Human GITR/TNFRSF18 Protein, Accession : Q9Y5U5
Biotinylated Human GITR/TNFRSF18 Protein,Q9Y5U5,Gln26-Glu161
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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
PolyI-poly£¨C12.U£©sodium salt CAS 38640-92-5
PolyI-poly£¨C12.U£©sodium salt,38640-92-5,Poly [I : (C12.U)] sodium salt,C28H40N9O25P3
Cytidine 5′-triphosphate disodium salt CAS 36051-68-0(81012-87-5, 652154-13-7)
Cytidine 5′-triphosphate disodium salt,36051-68-0,5′-CTP, 2Na ; CTP-Na2
disodium5′-O-[({hydroxy[(hydroxyphosphinato)oxy]phosphoryl}oxy)phosphinato]c
ytidine;,C9H14O14N3P3Na2
Polycytidylic acid sodium salt CAS 30811-80-4
Polycytidylic acid sodium salt,30811-80-4,Poly C sodium salt,(C9H11O7N3PNa)n
Pseudo-UTP 100mM Sodium solution CAS PUTP100
Pseudo-UTP 100mM Sodium solution,PUTP100,Nucleotides
Bucladesine calcium salt CAS NNA-0004
Bucladesine calcium salt,NNA-0004,DB-cAMP.Ca,C18H23CaN5O8P2.3H2O
Fluorescein-12-UTP 10mM Sodium solution CAS F12UTP
Fluorescein-12-UTP 10mM Sodium solution,F12UTP,Nucleotides
Impurity Reference Standards
- All
- Apixaban
- Apremilast
- Cinacalcet
- Famotidine
- Fesoterodine
- Sitagliptin
Apremilast 2-Acetamido Benzoic Acid Imurity CAS 1809170-71-5
Apremilast 2-Acetamido Benzoic Acid Imurity,1809170-71-5,Apremilast
Famotidine EP Impurity F CAS 107880-74-0
Famotidine EP Impurity F,107880-74-0,Famotidine
Fesoterodine Diol Dimer CAS 1428856-45-4
Fesoterodine Diol Dimer,1428856-45-4,Fesoterodine
Prostaglandin
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
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
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
(+)-Cloprostenol isopropyl ester CAS 157283-66-4
(+)-Cloprostenol isopropyl ester,157283-66-4,(+)-Cloprostenol isopropyl ester ;CPG 6112-95;5-Heptenoic acid,7-[(1R,2R,3R,5S)-2-[(1E,3R)-4-(3-chlorophenoxy)-3-hydroxy-1-butenyl]-3,5-dihydroxycyclopentyl]-, 1-methylethyl ester, (5Z)-;ISOPROPYL CLOPROSTENAT
Catalysts and Ligands
Bis[2-(diphenylphosphino)phenyl] Ether CAS 166330-10-5
(OXYDI-2,1-PHENYLENE)BIS(DIPHENYLPHOSPHINE),166330-10-5,,C36H28OP2
(+/-)-2,2′-Bis(diphenylphosphino)-1,1′-binaphthyl CAS 98327-87-8
(+/-)-2,2′-Bis(diphenylphosphino)-1,1′-binaphthyl,98327-87-8,2,2′-Bis(diphenylphosphino)-1,1′-binaphthyl;(+/-)-BINAP,C44H32P2
NiXanthphos CAS 261733-18-0
Identification CAS Number 261733-18-0 Name NiXanthphos Synonyms 10H-phenoxazine, 4,6-bis(diphenylphosphino)-4,6-Bis(diphenylphosphino)-10H-phenoxazine4,6-bis(diphenylphosphanyl)-10H-phenoxazine4,6-Bis(diphenylphosphino)phenoxazine Molecular Structure SMILES O3c5c(Nc4cccc(P(c1ccccc1)c2ccccc2)c34)cccc5P(c6ccccc6)c7ccccc7 StdInChI InChI=1S/C36H27NOP2/c1-5-15-27(16-6-1)39(28-17-7-2-8-18-28)33-25-13-23-31-35(33)38-36-32(37-31)24-14-26-34(36)40(29-19-9-3-10-20-29)30-21-11-4-12-22-30/h1-26,37H StdInChIKey HSWZLYXRAOXOLL-UHFFFAOYSA-N MDL Number MFCD03788937 Molecular Formula C36H27NOP2 Molecular Weight 551.5532 Properties Appearance Grey to white solid Flash Point 354.3°C Melting Point 256-262 °C Boiling Point 662.1°C at 760 mmHg Safety Data WGK Germany 3 MSDS Download MSDS of NiXanthphos CAS 261733-18-0 Specifications and Other Information
1,5-Cyclooctadiene(COD) CAS 111-78-4
Identification Properties Safety Data Specifications & Other Information Links Identification CAS Number 111-78-4 Name 1,5-Cyclooctadiene(COD) Synonyms (1Z,5Z)-1,5-Cyclooctadiene [ACD/IUPAC Name] (1Z,5Z)-1,5-Cyclooctadien [German] [ACD/IUPAC Name] (1Z,5Z)-1,5-Cyclooctadiène [French] [ACD/IUPAC Name] (1Z,5Z)-Cycloocta-1,5-diene (Z,Z)-1,5-Cyclooctadiene 1,5-COD 1,5-Cyclooctadiene (Z,Z) 1,5-Cyclooctadiene, (1Z,5Z)- [ACD/Index Name] 1,5-CYCLOOCTADIENE, (Z,Z)- 1.5-CYCLOOCTADIENE 111-78-4 [RN] 1-cis,5-cis-Cyclooctadiene 1E1VVD385Z 1Z,5Z-Cyclooctadiene 203-907-1 [EINECS] 4-05-00-00403 [Beilstein] cis,cis-1,5-Cyclooctadiene CIS,CIS-CYCLOOCTA-1,5-DIENE COD CYCLOOCTA-1,5-DIENE cyclooctadiene UNII-1E1VVD385Z (5Z)-cycloocta-1,5-diene (Z,Z)-cycloocta-1,5-diene cis-1,5-cyclooctadiene cyclo-octa-1,5-diene
Xantphos CAS 161265-03-8
Identification Properties Safety Data Specifications & Other Information Links Quick Inquiry Identification CAS Number 161265-03-8 Name XantphosPL-133 (Johnson Matthey) Synonyms (9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(diphenylphosphine) [5-(Diphenylphosphino)-9,9-dimethyl-9H-xanthen-4-yl]phosphine phosphine, 1,1′-(9,9-dimethyl-9H-xanthene-4,5-diyl)bis[1,1-diphenyl- Xanthene, 4,5-bis(diphenylphosphino)-9,9-dimethyl- Xantphos 4,5-Bis(diphenylphosphino)-9,9-dimethylxanthene 4,5-Bis(diphenylphospheno)-9,9-dimethylxanthene 4,5-Bis(diphenylphosphino)-9,9-dimethyl-9H-xanthene 4,5-Bis(diphenylphosphino)-9,9-dimethylxanthene 9,9-Dimethy-4,5-bis(diphenylphosphino)xanthene 9,9-dimethyl-4,5-bis(diphenylphosphino) 9,9-dimethyl-4,5-bis(diphenylphosphino)-9H-xanthene 9,9-Dimethyl-4,5-bis(diphenylphosphino)xanthene dimethylbisdiphenylphosphinoxanthene SMILES O6c1c(cccc1P(c2ccccc2)c3ccccc3)C(c7cccc(P(c4ccccc4)c5ccccc5)c67)(C)C StdInChI InChI=1S/C39H32OP2/c1-39(2)33-25-15-27-35(41(29-17-7-3-8-18-29)30-19-9-4-10-20-30)37(33)40-38-34(39)26-16-28-36(38)42(31-21-11-5-12-22-31)32-23-13-6-14-24-32/h3-28H,1-2H3 StdInChIKey CXNIUSPIQKWYAI-UHFFFAOYSA-N MDL Number MFCD00233866 Molecular Formula C39H32OP2 Molecular Weight 578.63 Properties Appearance Off white or light
5-(Di-tert-butylphosphino)-1′, 3′, 5′-triphenyl-1’H-[1,4′]bipyrazole CAS 894086-00-1
BIPPYPHOS,894086-00-1,5-[BIS(TERT-BUTYL)PHOSPHINO]-1′,3′,5′-TRIPHENYL-1,4′-BI-1H-PYRAZOLE;5-(DI-TERT-BUTYLPHOSPHINO)-1′, 3′, 5′-TRIPHENYL-1’H-[1,4′]BIPYRAZOLE;5-(Di-t-butylphosphino)-1′,3′,5′-triphenyl-1,4′-bi-1H-pyrazole, min. 95% t-Bu-BippyPhos;5-(Di-t-butylphosphino)-1′,3′,5′-triphenyl-1,4′-bi-1H-pyrazole;95% t-Bu-BippyPhos;5-[Di(tert-butyl)phosphino]-1′,3′,5′-triphenyl-1’H-[1,4′]bipyrazolyl;5-(Di-t-butylphosphino)-1-(1,3,5-triphenyl-1H-pyrazol-4-yl)-1H-pyrazole, 98% (BippyPhos)
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
ChemWhat Enzymes
Alpha1,3-N-acetylgalactosaminyltransferase ; Pm1138 CAS 124-1-40 E.C.: 2.4.1.40
Alpha1,3-N-acetylgalactosaminyltransferase ; Pm1138,124-1-40,E.C.: 2.4.1.40
Alpha1,3-galactosyltransferase ;GTB CAS 124-1-37 E.C.:2.4.1.37
Alpha1,3-galactosyltransferase ;GTB,124-1-37,E.C.:2.4.1.37
Alpha1,3-N-acetyl-galactosaminyltransferase;BgtA CAS 24-1-401 E.C.:2.4.1.40
Alpha1,3-N-acetyl-galactosaminyltransferase;BgtA,24-1-401,E.C.:2.4.1.40
Beta1,3-galactosyltransferase;WbgO CAS 124-1-86 E.C.:2.4.1.86
Beta1,3-galactosyltransferase;WbgO,124-1-86,E.C.:2.4.1.86
Alpha2,3-sialyltransferase;PhAlpha2.3SiaT CAS 2-4-994 E.C.:2.4.99.4
Alpha2,3-sialyltransferase;PhAlpha2.3SiaT,2-4-994,E.C.:2.4.99.4
Alpha1,2-fucosyltransferase ; a1,2FucT CAS 124-1-69 E.C.: 2.4.1.69
Alpha1,2-fucosyltransferase ; a1,2FucT,124-1-69,E.C.: 2.4.1.69
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UDP-Glc 4-epimerase (GalE)![]()
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37kDa![]()
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Structure of UDP-Glc 4-epimerase (GalE) E.C. 5.1.3.2![]()
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Safety
UDP-Glc 4-epimerase (GalE) E.C.: 5.1.3.2
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Identification Properties Safety Data Specifications & Other Information Links Quick Inquiry Identification E.C. Number 5.1.3.2 - Identification![]()
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1010396-31-2![]()
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-4,4'-diamine, N4,N4'-bis(4-ethenylphenyl)-N4,N4'-di-1-naphthalenyl- 1010396-31-2 MFCD27978272N,N'-Di(1-naphthyl)-N,N'-bis(4-vinylphenyl)-4,4'-biphenyldiamin N,N'-Di(1-naphthyl)-N,N'-bis(
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1010396-31-2,VNPB,N 4,N 4'-Di(naphthalen-1-yl)-N 4,N 4'-bis(4-vinylphenyl)biphenyl-4,4'-diamine - Identification![]()
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1010396-31-2![]()
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-4,4'-diamine, N4,N4'-bis(4-ethenylphenyl)-N4,N4'-di-1-naphthalenyl- 1010396-31-2 MFCD27978272N,N'-Di(1-naphthyl)-N,N'-bis(4-vinylphenyl)-4,4'-biphenyldiamin N,N'-Di(1-naphthyl)-N,N'-bis(
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1010396-31-2,VNPB,N 4,N 4'-Di(naphthalen-1-yl)-N 4,N 4'-bis(4-vinylphenyl)biphenyl-4,4'-diamine
Gold Nanoparticles
Semaglutide (910463-68-2): Revolutionizing Weight Loss Management
Watson's Leadership in Non-Natural Amino Acid Synthesis: Elevating Pharmaceutical Standards
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