L-Threonine impurities and related standards
11 reference standards related to L-Threonine held in the RSSE catalogue — pharmacopoeial impurities, non-compendial impurities, metabolites and labelled analogues where available.
In this group: 8 fine chemicals · 1 chemical reagent · 1 general reference standard · 1 stable isotope labelled standard. CAS numbers are listed for 11 of 11; 11 entries carry a structure drawing.
On this page
11 reference standards
All entries — structure, identifiers and pack sizes
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L-Threonine
IN STOCKRS-C033029 -
L-Threonine hydrochloride
IN STOCKRS-L190008 -
(2S,3R)-Methyl 2-amino-3-hydroxybutanoate
IN STOCKRS-Z401I43 -
L-THREONINE ETHYL ESTER HYDROCHLORIDE
IN STOCKRS-L190002 -
L-Threonine, 1-methylethyl ester, hydrochloride (1:1)
IN STOCKRS-L190003 -
L-Threonine, 4-fluoro-, ethyl ester (9CI)
BACK ORDERRS-L190004 -
L-Threonine, N-(2-hydroxyethyl)-(9CI)
CUSTOM SYNTHESISRS-L190005 -
L-Threonine, N-[(1,1-dimethylethoxy)carbonyl]-O-(phenylmethyl)-, methyl ester
CUSTOM SYNTHESISRS-L190006 -
N-Acetyl-d3-L-threonine-2,3-d2
IN STOCKRS-L190011 -
O-Methyl-L-threonine
IN STOCKRS-L190001
11 reference standards
Frequently asked
How many L-Threonine-related reference standards do you hold?
11 standards are listed on this page as of the latest catalogue build. CAS numbers are published for 11 of them and 11 entries carry a structure drawing. The catalogue is extended as new lots are released.
Can you supply a L-Threonine 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 L-Threonine 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 L-Threonine 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.







![Chemical structure of L-Threonine, N-[(1,1-dimethylethoxy)carbonyl]-O-(phenylmethyl)-, methyl ester](/structures/w4/IJAKSQLBNQCXRA-OCCSQVGLSA-N.webp?v=7)
![Chemical structure of L-Threonine,(3R)-N-acetyl-3-hydroxy-L-leucyl-(aR)-a-hydroxybenzenepropanoyl-2,3-didehydro-N-methylalanyl-L-alanyl-N-methyl-L-alanyl-(3R)-3-[[(2S,3R)-3-hydroxy-4-methyl-1-oxo-2-[(1-oxopropyl)amino]pentyl]oxy]-L-leucyl-N,O-dimethyl-,(7(R)1)-lactone (9CI)](/structures/w4/IMXKHFILKMPFGB-ZWYWTTNJSA-N.webp?v=7)

