+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

(Glu)-17-Semaglutide

CAT. No.S1420045 CAS No.NA Mol. F.C187H290N44O60 Mol. W.4114.56 g/mol Stock Status Instock
COA MSDS

(Gly9OnBu) Desmopressin

CAT. No.D980051 CAS No.NA Mol. F.C50H71N13O13S2 Mol. W.1126.30 g/mol Stock Status Instock
COA MSDS

Ala(CN)3-Calcitonin

CAT. No.C1380064 CAS No.NA Mol. F.C145H238N44O47S2 Mol. W.3413.88 g/mol Stock Status Instock
COA MSDS

D-(Asp)-9-Semaglutide

CAT. No.S1420043 CAS No.NA Mol. F.C187H291N45O59 Mol. W.4113.64 g/mol Stock Status Instock
COA MSDS

D-(His)-1-Semaglutide

CAT. No.S1420021 CAS No.NA Mol. F.C187H291N45O59 Mol. W.4113.58 g/mol Stock Status Instock
COA MSDS

D-Asn- Desmopressin

CAT. No.D980019 CAS No.NA Mol. F.NA Mol. W.NA Stock Status Instock
COA MSDS

D-Cys- Desmopressin

CAT. No.D980016 CAS No.NA Mol. F.NA Mol. W.NA Stock Status Instock
COA MSDS

D-Gln- Desmopressin

CAT. No.D980015 CAS No.NA Mol. F.NA Mol. W.NA Stock Status Instock
COA MSDS

D-His(7)-Semaglutide

CAT. No.S1420008 CAS No.NA Mol. F.C187H291N45O59 Mol. W.4113.64 g/mol Stock Status Instock
COA MSDS

D-Phe- Desmopressin

CAT. No.D980014 CAS No.NA Mol. F.NA Mol. W.NA Stock Status Instock
COA MSDS

D-Pro- Desmopressin

CAT. No.D980018 CAS No.NA Mol. F.NA Mol. W.NA Stock Status Instock
COA MSDS

D-Ser32-Tirzepatide

CAT. No.T1520049 CAS No.NA Mol. F.C225H348N48O68 Mol. W.4813.53 g/mol Stock Status Instock
COA MSDS

D-Tyr- Desmopressin

CAT. No.D980017 CAS No.NA Mol. F.NA Mol. W.NA Stock Status Instock
COA MSDS

D-Val(10)-Semaglutide

CAT. No.S1420042 CAS No.NA Mol. F.C187H291N45O59 Mol. W.4113.64 g/mol Stock Status Instock
COA MSDS

D-[Phe]6-Semaglutide

CAT. No.S1420044 CAS No.NA Mol. F.C187H291N45O59 Mol. W.4113.58 g/mol Stock Status Instock
COA MSDS

D-[Ser]-11-Semaglutide

CAT. No.S1420013 CAS No.NA Mol. F.C187H291N45O59 Mol. W.4113.60 g/mol Stock Status Instock
COA MSDS

D-[Ser]-8-Semaglutide

CAT. No.S1420015 CAS No.NA Mol. F.C187H291N45O59 Mol. W.4113.64 g/mol Stock Status Instock
COA MSDS

Working Standards

Calcitonin Salmon

CAT. No.C1380000 CAS No.47931-85-1 Mol. F.C145H240N44O48S2 Mol. W.3431.85 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