• D&B Number: 68-718-2908
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Cus­tom Amino Acids with High Require­ment on Impurities

Apnoke Sci­en­tif­ic Ltd devel­ops nat­ur­al amino acids, unnat­ur­al amino acids, amino alco­hols, N-Methyl amino acids, phos­pho­ry­lat­ed amino acids espe­cial­ly the ones with high require­ment on impu­ri­ties for phar­ma­ceu­ti­cal uses. Spe­cial­ty, High grade, Rea­son­able price and In time are our four advan­tages in amino acid field…

Our advan­tages

  • Spe­cial­ty. Rich expe­ri­ence in syn­the­sis and res­o­lu­tion of amino acids ;
  • High grade. Effect qual­i­ty con­trol by NMRHPLCEE.、Optical Rota­tion etc ;
  • Rea­son­able price. Mature prod­uct line with the indus­tri­al­iza­tion of the pro­duc­tion process allows us to con­trol costs effec­tive­ly and offer you the best price ;
  • In time. Dif­fer­ent lev­els of inter­me­di­ate inven­to­ry enable us to meet your needs quickly.

We will be com­mit­ted to the amino acids in the devel­op­ment and pro­duc­tion, process improve­ment and opti­miza­tion. And con­stant­ly improve the vari­ety of amino acids and inven­to­ry. Estab­lish an Amino Acid Libraries”.

Cus­tom Peptides

We Offer : High qual­i­ty pep­tides made by experts & deliv­ered to you with all documents :

  • HPLC chro­matogram
  • Mass spec analysis
  • Syn­the­sis report

Range of Services :

Our staffs are expe­ri­enced in the syn­the­sis of high qual­i­ty pep­tides with var­i­ous mod­i­fi­ca­tions. With over 200 units of ana­lyt­i­cal and prepar­a­tive HPLC, we can pro­vide pep­tides from small scale (mgs) to large scale (kgs) in very fast delivery :

  • Sim­ple to com­plex and Lin­ear to cyclized
  • Long sequences pep­tide up to 140 mer
  • From small to large scale
  • Dif­fer­ent puri­ty lev­el (desalt­ed, >75%, >85%, >90%, >95%, >98% and even above 99%)
  • Widest vari­ety of mod­i­fi­ca­tions (from biotiny­la­tion to phos­pho­ry­la­tion, to dye label­ing, and much more…)
  • Pep­tides – Pro­tein Bioconjugation
  • Purifi­ca­tion at dif­fer­ent scales
  • High­est suc­cess rate in the industry

List of Modification

N,C-terminal Mod­i­fi­ca­tion
Amino acid
Fluorescence/​Dye labeling
Cyclic Pep­tide
Quenched Flu­o­res­cent Peptide
Mul­ti­ple Anti­genic Pep­tide System
Acety­la­tion (N-Ter­mi­nal),
D-Arg, D-Cys, D-Asp, D-Asn, D-Glu, D-Gln, D-Ser, D-His, D-Thr, D-Trp, D-Leu,D-Ile, D-Met, D-Pro, D-Val ,D-Phe, pGlu, Hyp, D-Lys,D-Tyr, D-Orn, Orn, Abu, Aib, (D)1-Nal, (D)2-Pal, (D)4-Cl-Phe, Nva, Nle, Hse, Hcy, Pen, Mpa,N-Methyl amino acid (Ala, Phe, Leu, Ile, Val, Gly, Met),Other amino acid, Dini­troben­zoy­la­tion (Lys), Lys(Me2), Phos­pho­ry­la­tion (Tyr, Ser, Thr, sin­gle site), Tyr(SO3H2), Ser(octanoic acid)
Biotin (N-Ter­mi­nal, Y/N Ahx),
Disul­fide bridge 1st
Abz/​Tyr (3-NO2),
Asym­met­ric 4 branches
HYN­IC (N-Ter­mi­nal),
Biotin (Lys in sequence)
Disul­fide bridge 2nd
Asym­met­ric 8 branches
DTPA (N-Ter­mi­nal),
Biotin (with­out Lys in sequence)
Disul­fide bridge 3rd
Formy­la­tion (N-Ter­mi­nal)
FITC/5-FAM (N-Ter­mi­nal, Y/N Ahx)
Amide cyclic (Side chain, end)
Fat­ty acid (N-Ter­mi­nal)
Dan­syl (N-Ter­mi­nal, Y/N Ahx)
Myris­tic acid (N-Ter­mi­nal)
MCA (N-Ter­mi­nal)
Palmy­tolyl (N-Ter­mi­nal)
p-Nitroanilide(pNA, C-Ter­mi­nal)
Ben­zy­loxy­car­bony­la­tion (CBZ)
AMC (C-Ter­mi­nal)
Ami­da­tion (C-Ter­mi­nal)
Suc­ciny­la­tion (Suc, N-Terminal)

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