+91 87673 60663 (INDIA) info@simsonpharma.com

Search products

Search by product name, CAT, CAS, molecular formula or chemical name.
+91 87673 60663 (INDIA) +91 99208 62389 (EXPORTS) info@simsonpharma.com export@simsonpharma.com Cart 0
SimSon — Science Standards Solutions SimSon Pharma Limited (old logo)
Trusted Partner for Reference Standards and Beyond
Products About Us Lab Facilities Quality System Our Divisions SimSon Chemtech Speciality & fine chemicals SimSon Chemie Research chemicals supply SimSon Lifescience Services CRO, CDMO & analytical testing Contact us Careers
Products About us Facility Quality system OUR DIVISIONS SimSon Chemtech Speciality & fine chemicals SimSon Chemie Research chemicals supply SimSon Lifescience Services CRO, CDMO & analytical testing Contact us Careers

Peptide impurities

Peptide impurities are byproducts like truncated, deletion, and oxidized sequences formed during synthesis or storage, identified by HPLC and MS analysis.

Impurity Standards

Des-Gly (29)-Liraglutide

CAT. No.L920047 CAS No.NA Mol. F.C170H262N42O50 Mol. W.3694.21 g/mol Stock Status Instock
COA MSDS

Desmopressin EP Impurity A

CAT. No.D980039 CAS No.NA Mol. F.C46H63N13O13S2 Mol. W.1070.20 g/mol Stock Status Instock
COA MSDS

Desmopressin EP Impurity B

CAT. No.D980038 CAS No.NA Mol. F.C46H63N13O13S2 Mol. W.1070.20 g/mol Stock Status Instock
COA MSDS

Desmopressin EP Impurity C

CAT. No.D980040 CAS No.NA Mol. F.C46H63N13O13S2 Mol. W.1070.20 g/mol Stock Status Instock
COA MSDS

Desmopressin EP Impurity D

CAT. No.D980030 CAS No.113-81-5 Mol. F.C46H64N14O12S2 Mol. W.1069.22 g/mol Stock Status Instock
COA MSDS

Endo-Gly34-Tirzepatide

CAT. No.T1520045 CAS No.NA Mol. F.C227H351N49O69 Mol. W.4870.58 g/mol Stock Status Instock
COA MSDS

Endo-Pro7a-Desmopressin

CAT. No.D980002 CAS No.NA Mol. F.C51H71N15O13S2 Mol. W.1166.33 g/mol Stock Status Instock
COA MSDS

Glu(19)-Tirzepatide

CAT. No.T1520028 CAS No.NA Mol. F.C225H347N47O69 Mol. W.4814.51 g/mol Stock Status Instock
COA MSDS

Glu.1-Leuprolide

CAT. No.L570020 CAS No.NA Mol. F.C59H86N16O13 Mol. W.1227.41 g/mol Stock Status Instock
COA MSDS

L-Arg-Desmopressin

CAT. No.D980013 CAS No.NA Mol. F.NA Mol. W.NA Stock Status Instock
COA MSDS

L-beta-(Asp)9-Tirzepatide

CAT. No.T1520070 CAS No.NA Mol. F.C225H348N48O68 Mol. W.4810.53 g/mol Stock Status Instock
COA MSDS

Leuprolide EP Impurity E

CAT. No.L570008 CAS No.1926163-23-6 Mol. F.C59H84N16O12 Mol. W.1209.42 g/mol Stock Status Instock
COA MSDS

Leuprorelin EP Impurity G

CAT. No.L570010 CAS No.112710-57-3 Mol. F.C59H84N16O12 Mol. W.1209.40 g/mol Stock Status Instock
COA MSDS

Working Standards

Desmopressin Acetate

CAT. No.D980000 CAS No.62288-83-9 Mol. F.C48H68N14O14S2 Mol. W.1129.27 g/mol Stock Status Instock
COA MSDS

Leuprolide

CAT. No.L570000A CAS No.53714-56-0 Mol. F.C59H84N16O12 Mol. W.1209.40 g/mol Stock Status Instock
COA MSDS

Leuprolide Acetate

CAT. No.L570000 CAS No.74381-53-6 Mol. F.C59H84N16O12.C2H4O2 Mol. W.1269.45 g/mol Stock Status Instock
COA MSDS

Leuprolide Mesylate

CAT. No.L570034 CAS No.944347-41-5 Mol. F.C60H88N16O15S Mol. W.1305.50 g/mol Stock Status Instock
COA MSDS

Semaglutide

CAT. No.S1420000 CAS No.910463-68-2 Mol. F.C187H291N45O59 Mol. W.4113.58 g/mol Stock Status Instock
COA MSDS

Product structure

Sample structure

Catalogue no.: — CAS no.: — Formula: — Mol. weight: —

Illustrative sample structure
SimSon — Science Standards Solutions
D-U-N-S Registered — Dun & Bradstreet D-U-N-S® REGISTERED Verified by Dun & Bradstreet
JOIN OUR NEWSLETTER
OFFICES & LABORATORIES
REGISTERED OFFICE · MUMBAI B-307, Sarita Building, Prabhat Industrial Estate, Near Dahisar Toll Naka, Dahisar (East), Mumbai- 400068, Maharashtra, India
CORPORATE OFFICE · MUMBAI Unit 1001-1006, The Platina, Tanvi Complex, S. V. Road, Dahisar East, Mumbai 400068, India
LABORATORY · HYDERABAD Shed 6A, TYPE III, TSIIC, Prashanthi Nagar, Kukatpally, Hyderabad 500072, India
REGIONAL OFFICE · AHMEDABAD Survey Number 375 Paiki 1, Plot Number 11, Shivam 5, Near Sumip Composite, Panchratna Estate, Village Changodar, Taluka Sanand, District Ahmedabad, Gujarat-382213
QUICK LINKS About us Contact us Products Lab Facilities Quality system Careers Blog FAQ Sitemap Download Brouchures
TALK TO THE RIGHT DESK
Indian customers +91 87673 60663 info@simsonpharma.com
International customers +91 99208 62389 exports@simsonpharma.com
Bio-analytics standards +91 99208 62983 cro@simsonpharma.com
Research chemicals +91 96193 57538 info@simsonpharma.com
Landline +91 22 4006 8689 / 4014 8689
© 2026 SimSon Pharma Limited · All rights reserved
Shipping policy Return policy Privacy Policy Terms & Conditions