Date published: 2025-10-15

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Methyl-L-NIO Hydrochloride (CAS 150403-96-6)

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Alternate Names:
N5-(1-iminopropyl)-L-ornithine, monohydrochloride
CAS Number:
150403-96-6
Molecular Weight:
223.70
Molecular Formula:
C8H17N3O2•HCl
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data.

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Methyl-L-NIO (hydrochloride) is a competitive NOS inhibitor that competes with L-arginine for the amino acid binding site. Methyl-L-NIO (hydrochloride) is a more potent inhibitor of NOS1 (nNOS) (Ki = 3.0 μM) than NOS3 (eNOS) (Ki = 10.0 μM) or NOS2 (iNOS) (Ki = 9.5 μM).


Methyl-L-NIO Hydrochloride (CAS 150403-96-6) References

  1. N5-(1-Imino-3-butenyl)-L-ornithine. A neuronal isoform selective mechanism-based inactivator of nitric oxide synthase.  |  Babu, BR. and Griffith, OW. 1998. J Biol Chem. 273: 8882-9. PMID: 9535869

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

Methyl-L-NIO Hydrochloride, 5 mg

sc-205389
5 mg
$66.00

Methyl-L-NIO Hydrochloride, 10 mg

sc-205389A
10 mg
$126.00