Ipratropium impurities and related standards

Ipratropium is held here as a working collection of 48 reference materials across 7 CAS numbers. 19 of the entries are impurity-type materials of the parent, 6 carry a deuterium label. 9 entries carry a verified structure drawing, a coverage of 19%; the rest are listed without a structure rather than with an unverified one. 9 of them sit in tier A or B, meaning the data behind the page is complete enough to be indexed and quoted directly, while 39 remain tier C and are kept for search coverage. Relative response factors are what decide whether a percentage on a chromatogram means anything. Impurities that lack a chromophore, or whose ultraviolet maximum sits away from the detection wavelength used for the parent, under-respond by a factor that has to be established with a solution of the standard itself rather than assumed. Anyone comparing two suppliers on this parent should ask the same three questions of each: which letters are held, what the content basis is, and whether the structure on the page was verified against the name rather than copied from it.

Sources: DailyMed (US NLM) - IPRATROPIUM BROMIDE AND ALBUTEROL SULFATE SOLUTION [NEPHRON PHARMACEUTICALS CORPORATION].

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

In this group: 4 impurity reference standards · 4 fine chemicals · 1 general reference standard. CAS numbers are listed for 9 of 9; 8 entries carry a structure drawing.

On this page

9 reference standards

All entries — structure, identifiers and pack sizes

ipratropium

CAS 60205-81-4C20H30NO3+

MW 332.22

IN STOCKRS-Z401JOG
IPRATROPIUM IMPURITY G

CAS 124936-71-6C47H53F3N4O17

MW 1002.34

BACK ORDERRS-Z396DXE
(S)-(1R,3r,5S)-8-Isopropyl-8-azabicyclo[3.2.1]octan-3-yl 3-Hydroxy-2-phenylpropanoate

CAS 183626-76-8C20H29NO5

MW 363.4

IN STOCKRS-I011218
2-Phenylpropionaldehyde

CAS 93-53-8C9H10O

MW 134.17

IN STOCKRS-U001630
3-exo-Ipratropium Bromide Monohydrate

CAS 922491-06-3C20H30NO3BrH2O

MW 332.46

IN STOCKRS-U008A48
4,4-dimethoxybutanoic acid

CAS 35848-90-9C6H12O4

MW 148.16

IN STOCKRS-U068200
Ipratropium bromide monohydrate

CAS 66985-17-9C20H32BrNO4

MW 430.4

BACK ORDERRS-U061328
Ipratropium Impurity 26

CAS not assignedC20H27NO4

MW 345.19

IN STOCKRS-I001A5L
Ipratropium Impurity 44

CAS not assignedC20H30INO4

MW 475.12

BACK ORDERRS-I001BVC

9 reference standards

Frequently asked

How many Ipratropium-related reference standards do you hold?

9 standards are listed on this page as of the latest catalogue build. CAS numbers are published for 9 of them and 8 entries carry a structure drawing. The catalogue is extended as new lots are released.

Can you supply an Ipratropium 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 Ipratropium 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 Ipratropium 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.