Kathwada, Ahmedabad — 382430 +91 95868 58886 info@molsyns.com
Molsyns Research

Peptides

Expert Custom Synthesis

Molsyns Research is a premier manufacturer and supplier of high-purity peptide impurities, stable isotope standards, and solid-phase synthesis building blocks. We specialize in custom synthesis of complex peptide standards, including GLP-1 receptor agonist impurities like Semaglutide and Tirzepatide reference standards. Our Ahmedabad-based R&D lab ensures that all compounds meet rigorous quality guidelines with comprehensive analytical validation.

Semaglutide Impurity-18

Semaglutide Impurity-18

CAT. No.
MRL-AA10001
CAS. No.
843666-34-2
Mol. F.
C26H45NO6
Mol. Wt.
467.65
Stock
In Stock
Semaglutide Impurity-17

Semaglutide Impurity-17

CAT. No.
MRL-AA10002
CAS. No.
1671100-14-3
Mol. F.
C37H68N2O10
Mol. Wt.
700.96
Stock
In Stock
Semaglutide Impurity-19

Semaglutide Impurity-19

CAT. No.
MRL-AA10003
CAS. No.
1188328-22-4
Mol. F.
C35H60N2O9
Mol. Wt.
652.87
Stock
In Stock
Semaglutide Impurity 4

Semaglutide Impurity 4

CAT. No.
MRL-AA10004
CAS. No.
2387598-82-3
Mol. F.
C26H50O4
Mol. Wt.
426.7
Stock
In Stock
Semaglutide Impurity 5

Semaglutide Impurity 5

CAT. No.
MRL-AA10005
CAS. No.
2061897-68-3
Mol. F.
C34H38N4O5
Mol. Wt.
582.7
Stock
In Stock
Semaglutide Impurity 2

Semaglutide Impurity 2

CAT. No.
MRL-AA10007
CAS. No.
1118767-16-0
Mol. F.
C43H79N3O13
Mol. Wt.
846.11
Stock
In Stock
Semaglutide Impurity 3

Semaglutide Impurity 3

CAT. No.
MRL-AA10008
CAS. No.
1118767-15-9
Mol. F.
C47H82N4O15
Mol. Wt.
943.19
Stock
In Stock
Semaglutide Impurity 43

Semaglutide Impurity 43

CAT. No.
MRL-AA10009
CAS. No.
108466-89-3
Mol. F.
C11H21NO6
Mol. Wt.
263.29
Stock
In Stock
Semaglutide Impurity 7

Semaglutide Impurity 7

CAT. No.
MRL-AA10010
CAS. No.
134978-97-5
Mol. F.
C6H13NO4
Mol. Wt.
163.17
Stock
In Stock
Semaglutide Impurity 8

Semaglutide Impurity 8

CAT. No.
MRL-AA10011
CAS. No.
1069067-08-8
Mol. F.
C17H32N2O9
Mol. Wt.
408.45
Stock
In Stock
Semaglutide Impurity 37

Semaglutide Impurity 37

CAT. No.
MRL-AA10012
CAS. No.
1143516-05-5
Mol. F.
C12H24N2O7
Mol. Wt.
308.33
Stock
In Stock
Tirezepatide Impurity 1

Tirezepatide Impurity 1

CAT. No.
MRL-AA10013
CAS. No.
1119061-69-6
Mol. F.
C28H49NO6
Mol. Wt.
495.70
Stock
In Stock
Tirezepatide Impurity-2 acid

Tirezepatide Impurity-2 acid

CAT. No.
MRL-AA10014
CAS. No.
1119061-70-9
Mol. F.
C33H61NO7
Mol. Wt.
583.85
Stock
In Stock
Tirzepatide Impurity 3

Tirzepatide Impurity 3

CAT. No.
MRL-AA10015
CAS. No.
1188328-37-1
Mol. F.
C45H83N3O13
Mol. Wt.
874.17
Stock
Custom Synthesis
Tirezepatide Impurity-2

Tirezepatide Impurity-2

CAT. No.
MRL-AA10016
CAS. No.
1119061-72-1
Mol. F.
C37H64N2O9
Mol. Wt.
680.92
Stock
Custom Synthesis
Tirzepatide Impurity 5

Tirzepatide Impurity 5

CAT. No.
MRL-AA10017
CAS. No.
3055106-62-9
Mol. F.
C65H103N5O16
Mol. Wt.
1210.56
Stock
Custom Synthesis
TIRZEPATIDE M1

TIRZEPATIDE M1

CAT. No.
MRL-AA10018
CAS. No.
NA
Mol. F.
C51H95N5O14
Mol. Wt.
1002.3
Stock
Custom Synthesis
TIRZEPATIDE M3

TIRZEPATIDE M3

CAT. No.
MRL-AA10019
CAS. No.
NA
Mol. F.
C142H227N27O47
Mol. Wt.
3064.5
Stock
Custom Synthesis
TIRZEPATIDE M4

TIRZEPATIDE M4

CAT. No.
MRL-AA10020
CAS. No.
NA
Mol. F.
C196H303N39O58
Mol. Wt.
4133.80
Stock
Custom Synthesis
TIRZEPATIDE M13

TIRZEPATIDE M13

CAT. No.
MRL-AA10021
CAS. No.
NA
Mol. F.
C139H222N26O46
Mol. Wt.
2993.44
Stock
Custom Synthesis
KPV tripeptide

KPV tripeptide

CAT. No.
MRL-AA10034
CAS. No.
67727-97-3
Mol. F.
C16H30N4O4
Mol. Wt.
342.440
Stock
In Stock
Fmoc-Gly-OH

Fmoc-Gly-OH

CAT. No.
MRL-AA10022
CAS. No.
29022-11-5
Mol. F.
C17H15NO4
Mol. Wt.
297.3
Stock
In Stock
Fmoc-Arg(Pbf)-OH

Fmoc-Arg(Pbf)-OH

CAT. No.
MRL-AA10023
CAS. No.
154445-77-9
Mol. F.
C34H40N4O7S
Mol. Wt.
648.8
Stock
In Stock
Fmoc-Val-OH

Fmoc-Val-OH

CAT. No.
MRL-AA10024
CAS. No.
68858-20-8
Mol. F.
C20H21NO4
Mol. Wt.
339.4
Stock
In Stock
Fmoc-Leu-OH

Fmoc-Leu-OH

CAT. No.
MRL-AA10025
CAS. No.
35661-60-0
Mol. F.
C21H23NO4
Mol. Wt.
353.4
Stock
In Stock
Fmoc-Trp(Boc)-OH

Fmoc-Trp(Boc)-OH

CAT. No.
MRL-AA10026
CAS. No.
143824-78-6
Mol. F.
C31H30N2O6
Mol. Wt.
526.6
Stock
In Stock
Fmoc-ILe-OH

Fmoc-ILe-OH

CAT. No.
MRL-AA10027
CAS. No.
71989-23-6
Mol. F.
C21H23NO4
Mol. Wt.
353.4
Stock
Custom Synthesis
Fmoc-Phe-OH

Fmoc-Phe-OH

CAT. No.
MRL-AA10028
CAS. No.
35661-40-6
Mol. F.
C24H21NO4
Mol. Wt.
387.4
Stock
In Stock
Fmoc-Glu(OtBu)-OH

Fmoc-Glu(OtBu)-OH

CAT. No.
MRL-AA10029
CAS. No.
71989-18-9
Mol. F.
C24H29NO7
Mol. Wt.
443.5
Stock
In Stock
Fmoc-Gln(Trt)-OH

Fmoc-Gln(Trt)-OH

CAT. No.
MRL-AA10030
CAS. No.
132327-80-1
Mol. F.
C39H34N2O5
Mol. Wt.
610.7
Stock
In Stock
Fmoc-Tyr(tBu)-OH

Fmoc-Tyr(tBu)-OH

CAT. No.
MRL-AA10031
CAS. No.
71989-38-3
Mol. F.
C28H29NO5
Mol. Wt.
459.5
Stock
In Stock
Fmoc-Ser(tBu)-OH

Fmoc-Ser(tBu)-OH

CAT. No.
MRL-AA10031
CAS. No.
71989-33-8
Mol. F.
C22H25NO5
Mol. Wt.
383.4
Stock
In Stock
Fmoc-Asp(OtBu)-OH

Fmoc-Asp(OtBu)-OH

CAT. No.
MRL-A10032
CAS. No.
71989-14-5
Mol. F.
C23H25NO6
Mol. Wt.
411.5
Stock
In Stock
Fmoc-Thr(tBu)-OH

Fmoc-Thr(tBu)-OH

CAT. No.
MRL-A10033
CAS. No.
71989-35-0
Mol. F.
C23H27NO5
Mol. Wt.
397.5
Stock
In Stock
FAQ

Peptide Standards & Impurities FAQ

We manufacture and supply high-purity peptide reference standards, impurities, stable isotope-labeled standards, and solid-phase synthesis building blocks. This includes custom impurities for Semaglutide, Tirzepatide, Liraglutide, and various Fmoc-protected amino acid derivatives.

Yes, custom synthesis is one of our primary capabilities. Our state-of-the-art laboratory in Ahmedabad is equipped with skilled scientists who specialize in developing complex organic structures and novel peptide impurities according to client requirements.

Every product is supplied with a comprehensive Certificate of Analysis (CoA) containing detailed characterization data including HPLC purity, mass spectrometry (MS), and NMR analysis to confirm identity and structure.