• D&B Number: 68-718-2908

  • Strong R&D Capac­i­ty

    With tech­ni­cal capac­i­ties from FCAD R&D com­pa­nies, Wat­son has exper­tise to sup­port a vast range of cus­tom syn­the­sis service. 
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  • Pro­fes­sion­al Attitude

    Wat­son is always com­mit­ted to more pro­fes­sion­al, com­pre­hen­sive and accu­rate infor­ma­tion, solu­tion and ser­vice in chem­i­cal industry. 
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  • Good Rep­u­ta­tion

    Wat­son has a con­tin­u­ous good rep­u­ta­tion among com­pa­nies, gov­ern­ment and R&D insti­tu­tions and uni­ver­si­ties around the world. 
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Recom­bi­nant Proteins

Biotiny­lat­ed Human IL-18 Pro­tein (Pri­ma­ry Amine Label­ing), Acces­sion : Q14116

Biotiny­lat­ed Human IL-18 Pro­tein (Pri­ma­ry Amine Label­ing),Q14116,Tyr37-Asp193

Human VAP-1 Pro­tein, Acces­sion : Q16853

Human VAP-1 Pro­tein,Q16853,Gly27-Asn763

Recom­bi­nant Murine Fibrob­last Growth Fac­tor 8 (rMuFGF-8) CAS 124-08-1816

Recom­bi­nant Murine Fibrob­last Growth Fac­tor 8,rMuFGF-8,AIGF, HBGF-8, FGF-8c,P37237,14179

Human Coag­u­la­tion Fac­tor III/​Tissue Fac­tor Pro­tein, Acces­sion : P13726

Human Coag­u­la­tion Fac­tor III/​Tissue Fac­tor Pro­tein,P13726,Ser33-Glu251

Human Activin RIIA/ACVR2A Pro­tein, Acces­sion : P27037

Human Activin RIIA/ACVR2A Pro­tein,P27037,Ala20-Pro135

Human KIR2DL1 Pro­tein, Acces­sion : P43626

Human KIR2DL1 Pro­tein,P43626,His22-Arg242

The Crit­i­cal Role of Anion Exchange Mem­branes (AEMs) in Hydro­gen Energy

We are ded­i­cat­ing our efforts to devel­op­ing Anion Exchange Mem­branes (AEMs)

in prepa­ra­tion for the wide­spread adop­tion of hydro­gen energy.

Monomers for AEMs

Monomers for AEMs 300x171 - HOME

Poly­mers for AEMs

Polymers for AEMs 300x171 - HOME

Anion Exchange Membranes

Advantages of Polyberg Technology 300x171 - HOME

Poly­eth­yl­ene Gly­col (PEG) Linkers

Aminooxy-PEG4-CH2­­CO2H CAS 1807537-38-70

Aminooxy-PEG4-CH2CO2H,1807537-38-70

Boc­NH-P5-NHS ester CAS 2055040-78-1

Boc­NH-P5-NHS ester,2055040-78-1

Propar­­gyl-PEG8-NHS ester CAS 2182601-74-5

Iden­ti­fi­ca­tion Prop­er­ties Safe­ty Data Spec­i­fi­ca­tions & Oth­er Infor­ma­tion Links Quick Inquiry Iden­ti­fi­ca­tion CAS Num­ber 2182601-74-5 Name Propar­­­gyl-PEG8-NHS ester Syn­onyms 1-(4,7,10,13,16,19,22,25-Octaoxaoctacos-27-ynoyloxy)-2,5-pyrrolidindion [Ger­man] [ACD/IUPAC Name]1-(4,7,10,13,16,19,22,25-Octaoxaoctacos-27-ynoyloxy)-2,5-pyrrolidinedione [ACD/IUPAC Name]1-(4,7,10,13,16,19,22,25-Octaoxaoctacos-27-ynoyloxy)-2,5-pyrrolidinedione [French] [ACD/IUPAC Name]2,5-Pyrrolidinedione, 1-[(1-oxo-4,7,10,13,16,19,22,25-octaoxaoctacos-27-yn-1-yl)oxy]- [ACD/​Index Name]2182601-74-5 [RN]4,7,10,13,16,19,22,25-Octaoxaoctacos-27-ynoic acid, 2,5-dioxo-1-pyrrolidinyl esterMFCD31536764Propar­­­gyl-PEG8-NHS ester SMILES C#CCOC­COC­COC­COC­COC­COC­COC­COC­CC(=O)ON1C(=O)CCC1=O Std­InChI InChI=1S/C24H39NO12/c1-2-6-29-8-10-31-12-14-33-16-18-35-20-21-36-19-17-34-15-13-32-11-9-30-7-5-24(28)37-25-22(26)3-4-23(25)27/h1H,3-21H2 Std­InChIKey PFFLY­­­B­WAOVX­ONG-UHF­F­­­FAOYSA-N Mol­e­c­u­lar For­mu­la C24H39NO12 Mol­e­c­u­lar Weight 533.566 Prop­er­ties Appear­ance Trans­par­ent to light-yel­low oily liq­uid Safe­ty Data WGK

PEG4 Alde­hyde-CH2­­CO2H CAS 2062663-67-43

PEG4 Aldehyde-CH2CO2H,2062663-67-43

MMA-PEG-PCL CAS 139729-28-5564

MMA-PEG-PCL,139729-28-5564,PEG

PEG4 Alde­hyde-Propar­­gyl CAS 2062663-67-48

PEG4 Aldehyde-Propargyl,2062663-67-48

Nucleotides

1-Chloro-3,5-di(4-chlorbenzoyl)-2-deoxy-D-ribose CAS 3601-90-9

1-Chloro-3,5-di(4-chlorbenzoyl)-2-deoxy-D-ribose,3601-90-9,3,5-O-Bis(4-chlorobenzoyl)-2-deoxy-D-ribofuranosylchloride,C19H15Cl3O5

Poly­cytidylic acid potas­si­um salt CAS 26936-40-3

Poly­cytidylic acid potas­si­um salt,26936-40-3,Poly C potas­si­um salt,(C9H11O7N3PK)n

GTP 200mM Tris solu­tion CAS GTPT200

GTP 200mM Tris solu­tion,GTPT200,Nucleotides

Uri­dine 5′-triphosphate dis­odi­um salt CAS 285978-18-9

Uri­dine 5′-triphosphate dis­odi­um salt,285978-18-9,5′-UTP, 2Na ; UTP-Na2
5′- Uri­dine triphos­phate­dis­odi­um salt,C9H13N2O15P3.2Na

CMP-Na2//­­Cy­ti­­dine 5′-monophosphate dis­odi­um salt CAS 6757-06-8

Cyti­dine 5′-monophosphate dis­odi­um salt,6757-06-8,5′-CMP,2Na ; CMP-Na2 ;
Cyti­dine 5′-(disodium phos­phate);
5′-Cytidylic acid, dis­odi­um salt ;
Dis­odi­um 5′-cytidilate ;
Dis­odi­um 5′-O-phosphonatocytidine,C9H12N3Na2O8P

CTP 200mM Tris solu­tion CAS CTPT200

CTP 200mM Tris solu­tion,CTPT200,Nucleotides

Phar­ma­ceu­ti­cal Impu­ri­ty Ref­er­ence Standards

We pro­vide phar­ma­ceu­ti­cal R&D com­pa­nies with high-qual­i­ty chem­i­cal prod­ucts for the reg­is­tra­tion of new drugs and gener­ic drugs, including

Phar­ma­ceu­ti­cal Ref­er­ence Stan­dards, Phar­ma­ceu­ti­cal Impu­ri­ty Ref­er­ence Sub­stances and Fea­tured Intermediates.

Pro­fes­sion­al­ism

We have a pro­fes­sion­al team with many years of expe­ri­ence in the field of phar­ma­ceu­ti­cal research and analy­sis, which can pro­vide you with com­pre­hen­sive pre-sales advice and after-sales tech­ni­cal support.

Qual­i­ty

Con­trol qual­i­ty from the source. For unsta­ble prod­ucts, retest is always done before ship­ment to guar­an­tee qual­i­fi­ca­tions. Oily or vis­cous prod­ucts are dried with a lyophiliz­er to ensure the best properties.

Ser­vice

The prod­ucts shipped by tight­ly packed with ice bags or even full cold chain trans­porta­tion to ensure prod­uct qual­i­ty. At the same time, Wat­son also plans to set up over­seas ware­hous­es in US, Chi­na, Poland, India…

Impu­ri­ty Ref­er­ence Standards

  • All
  • Cefox­itin
  • Cef­prozil
  • Flu­ti­ca­s­one Propionate
  • Methyl­pred­nisolone acetate
  • Parox­e­tine
  • Terbinafine

Cefox­itin Impu­ri­ty D(EP)(Cefox­itin lac­tone ) CAS 35607-66-016005

Cefox­itin Impu­ri­ty D(EP)(Cefox­itin lac­tone ),35607-66-016005,Cefoxitin

Parox­e­tine Impu­ri­­ty-E CAS 78246-49-8123

Parox­e­tine Impurity-E,78246-49-8123,Paroxetine

Flu­ti­ca­s­one 17be­­ta-Car­bonyl­­sulfenic Acid 17-Pro­pi­onate CAS 948566-12-9

Flu­ti­ca­s­one 17be­­ta-Car­bonyl­­sulfenic Acid 17-Propionate,948566-12-9

Methyl­pred­nisolone Acetate EP Impu­ri­ty B CAS 53-36-120011003

Methyl­pred­nisolone Acetate EP Impu­ri­ty B,53-36-120011003,Methylprednisolone acetate

Cef­prozil dou­ble Moth­er Nucle­us CAS 92665-29-730033

Cef­prozil dou­ble Moth­er Nucleus,92665-29-730033,Cefprozil

Terbinafine EP Impu­ri­ty F CAS 926281-74-5

Terbinafine EP Impu­ri­ty F,926281-74-5,Terbinafine

Prostaglandin

Latanoprost CAS 130209-82-4(41639-74-1)

Latanoprost,130209-82-4,Propan-2-yl7-[3,5-dihydroxy-2-(3-hydroxy-5-phenyl-pentyl)-cyclopentyl]hept-5-enoate,C26H40O5

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

(+)-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

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

Alprostadil CAS 745-65-3

Alprostadil,745-65-3,Prostaglandin E1

15S-Clo­prostenol CAS 54276-22-1

(¡À)-Cloprostenol,54276-22-1,D-Cloprostenol

Cat­a­lysts and Ligands

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

Dimethylphenylphos­phine CAS 672-66-2

Dimethylphenylphosphine,672-66-2,PHOS­PHO­RUS DIMETHYL PHENYL ;DIMETHYLPHENYLPHOS­PHINE;Phenyldimethylphosphine;Phosphine, dimethylphenyl-;Dimethylphenylphosphine;Dimethylphenylphosphine;Dimethylphenylphosphine

2-Diphenylphos­phi­noben­zalde­hyde CAS 50777-76-9

2-Diphenylphosphinobenzaldehyde,50777-76-9,2-(Diphenylphosphino)benzaldehyde

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

Tris(Hydroxypropyl)Phosphine CAS 4706-17-6

Tris(Hydroxypropyl)Phosphine,4706-17-6,3,3¡¯,3¡¯¡¯-(Phosphinetriyl)Tris(1-Propanol);Tris(3-Hydroxypropyl)Phosphine,Min.80%;3,3¡¯,3¡¯¡¯-Phosphinetriyltris(1-Propanol),C9H21O3P

1,1’-Bis(dicyclohexylphosphino)ferrocene CAS 146960-90-9

Iden­ti­fi­ca­tion CAS Num­ber 146960-90-9 Name 1,1′-BIS(DICY­CLO­HEXYLPHOS­PHI­NO)FER­ROCENE Syn­onyms 146960-90-9 [RN]Dicyclohexyl(cyclopentyl)phosphin -eisen (2:1) [Ger­man] [ACD/IUPAC Name]Dicyclohexyl(cyclopentyl)phosphine – fer (2:1) [French] [ACD/IUPAC Name]Dicyclohexyl(cyclopentyl)phosphine – iron (2:1) [ACD/IUPAC Name]MFCD09038820 [MDL num­ber]Phos­phine, dicy­­­clo­hexyl­­­cy­­­clopentyl-, iron salt (2:1) [ACD/​Index Name]1,1-Bis(Dicyclohexylphosphino)Ferrocene1,1′-BIS(DICY­CLO­HEXYLPHOS­PHI­NO)FER­ROCENE [ACD/IUPAC Name]dCypf SMILES C1CCC(CC1)P(C2CCCCC2)C3CCCC3.C1CCC(CC1)P(C2CCCCC2)C3CCCC3.[Fe] Std­InChI InChI=1S/2C17H31P.Fe/c21-3-9-15(10-4-1)18(17-13-7-8-14-17)16-11-5-2-6-12-16;/h215-17H,1-14H2 ; Std­InChIKey IWYL­GIFVM­P­KVOA-UHF­F­­­FAOYSA-N Mol­e­c­u­lar For­mu­la C34H44FeP2 Mol­e­c­u­lar Weight 570.52 EINECS 623-251-3 MDL Num­ber MFCD09038820 Prop­er­ties Appear­ance Yel­low solid

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

nanosilver face masks 300x300 - HOME
Nanosil­ver Face Masks
nanosilver water purifier 300x300 - HOME
Nanosil­ver Water Purifier
Nanowire Touch Panels 300x300 - HOME
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