Captopril impurities and related standards

14 reference standards related to Captopril held in the RSSE catalogue — pharmacopoeial impurities, non-compendial impurities, metabolites and labelled analogues where available.

CAS numbers are listed for 14 of 14; 13 entries carry a structure drawing.

Captopril — related standards
Compound	CAS No.	Catalogue No.	Formula	MW
Captopril Impurity 2	112243-88-6	RS-C020002	C9H15NO3S	217.29
Captopril Impurity 1	119238-52-7	RS-C020003	C9H15NO3S	217.29
Captopril EP Impurity H	205521-07-9	RS-C020004	C15H23NO5S2	361.47
Captopril EP Impurity J	224626-08-8	RS-C020005	C11H17NO4S	259.3
Captopril EP Impurity E	23500-15-4	RS-C020006	C9H15NO3	185.22
Captopril EP Impurity C	26473-47-2	RS-C020007	C4H8O2S	120.17
Captopril EP Impurity G	33325-40-5	RS-C020008	C6H10O3S	162.21
Captopril EP Impurity D	56970-78-6	RS-C020009	C4H7BrO2	167
Captopril EP Impurity A (Captopril Disulfide)	64806-05-9	RS-C020010	C18H28N2O6S2	432.56
Captopril EP Impurity J	64838-55-7	RS-C020011	C11H17NO4S	259.32
Captopril EP Impurity N	65134-74-9	RS-C020012	C8H14O4S2	238.33
Captopril Related Compound 5	74345-73-6	RS-C020013	C6H9ClO2S	180.65
Captopril EP Impurity G (S-Isomer)	76497-39-7	RS-C020014	C6H10O3S	162.2
Captopril Impurity 3	1020151-61-4	RS-C020001	C14H23ClO3S	306.85

Structures

Captopril Impurity 2

CAS 112243-88-6RS-C020002
COA per lot
Captopril Impurity 1

CAS 119238-52-7RS-C020003
COA per lot
Captopril EP Impurity H

CAS 205521-07-9RS-C020004
COA per lot
Captopril EP Impurity J

CAS 224626-08-8RS-C020005
COA per lot
Captopril EP Impurity E

CAS 23500-15-4RS-C020006
COA per lot
Captopril EP Impurity C

CAS 26473-47-2RS-C020007
COA per lot
Captopril EP Impurity G

CAS 33325-40-5RS-C020008
COA per lot
Captopril EP Impurity D

CAS 56970-78-6RS-C020009
COA per lot

Frequently asked

How many Captopril-related reference standards do you hold?

14 standards are listed on this page as of the latest catalogue build. CAS numbers are published for 14 of them and 13 entries carry a structure drawing. The catalogue is extended as new lots are released.

Can you supply a Captopril impurity that is not listed here?

Yes. Non-compendial impurities can be quoted from a structure — a CAS number is not required. Send the structure, a SMILES string or the parent drug substance with your enquiry and we will come back with availability.

What documentation is supplied with Captopril impurities?

Every lot ships with its own certificate of analysis. The certificate records the catalogue number, the batch number, the tests performed, the specification applied and the result obtained for that lot. A safety data sheet is supplied with the shipment.

Do you publish prices or a lead time for Captopril impurities?

No price list is published: quotations are prepared per enquiry, because availability and packing depend on the lot and the quantity you need. Send the catalogue number and the quantity and a technical contact will answer with availability and a quotation.

Cannot find the impurity you need? Non-compendial impurities can be quoted from a structure — a CAS number is not required. Write to sales@rssechem.com.