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Catalog No. T26199   CAS 139427-42-2

S-Nitrosohomocysteine is an Inhibitor of DDAH.

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S-Nitrosohomocysteine, CAS 139427-42-2
Pack Size Availability Price/USD Quantity
5 mg 6-8 weeks
$ 970.00
$ 776.00
50 mg 6-8 weeks
$ 1,980.00
$ 1,584.00
100 mg 6-8 weeks
$ 2,500.00
$ 2,000.00
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Purity: 98%
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Biological Description
Chemical Properties
Storage & Solubility Information
Description S-Nitrosohomocysteine is an Inhibitor of DDAH.
Molecular Weight 164.18
Formula C4H8N2O3S
CAS No. 139427-42-2


Powder: -20°C for 3 years | In solvent: -80°C for 2 years

Solubility Information

( < 1 mg/ml refers to the product slightly soluble or insoluble )

References and Literature

1. Karver CE, Ahmed VF, Barrios AM. Oxidative inactivation of the lymphoid tyrosine phosphatase mediated by both general and active site directed NO donors. Bioorg Med Chem Lett. 2011 Jan 1;21(1):285-7. doi: 10.1016/j.bmcl.2010.11.025. Epub 2010 Nov 9. PubMed PMID: 21129966. 2. Morakinyo MK, Strongin RM, Simoyi RH. Modulation of homocysteine toxicity by S-nitrosothiol formation: a mechanistic approach. J Phys Chem B. 2010 Aug 5;114(30):9894-904. doi: 10.1021/jp103679v. PubMed PMID: 20666529. 3. Hong L, Fast W. Inhibition of human dimethylarginine dimethylaminohydrolase-1 by S-nitroso-L-homocysteine and hydrogen peroxide. Analysis, quantification, and implications for hyperhomocysteinemia. J Biol Chem. 2007 Nov 30;282(48):34684-92. Epub 2007 Sep 24. PubMed PMID: 17895252. 4. Chobanyan K, Thum T, Suchy MT, Zhu B, Mitschke A, Gutzki FM, Beckmann B, Stichtenoth DO, Tsikas D. GC-MS assay for hepatic DDAH activity in diabetic and non-diabetic rats by measuring dimethylamine (DMA) formed from asymmetric dimethylarginine (ADMA): evaluation of the importance of S-nitrosothiols as inhibitors of DDAH activity in vitro and in vivo in humans. J Chromatogr B Analyt Technol Biomed Life Sci. 2007 Oct 15;858(1-2):32-41. Epub 2007 Aug 7. PubMed PMID: 17825631.

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An example of a molarity calculation using the molarity calculator
What is the mass of compound required to make a 10 mM stock solution in 10 ml of water given that the molecular weight of the compound is 197.13 g/mol?
Enter 197.13 into the Molecular Weight (MW) box
Enter 10 into the Concentration box and select the correct unit (millimolar)
Enter 10 into the Volume box and select the correct unit (milliliter)
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The answer of 19.713 mg appears in the Mass box


Calculator the dilution required to prepare a stock solution

Calculate the dilution required to prepare a stock solution
The dilution calculator is a useful tool which allows you to calculate how to dilute a stock solution of known concentration. Enter C1, C2 & V2 to calculate V1.

See Example

An example of a dilution calculation using the Tocris dilution calculator
What volume of a given 10 mM stock solution is required to make 20ml of a 50 μM solution?
Using the equation C1V1 = C2V2, where C1=10 mM, C2=50 μM, V2=20 ml and V1 is the unknown:
Enter 10 into the Concentration (start) box and select the correct unit (millimolar)
Enter 50 into the Concentration (final) box and select the correct unit (micromolar)
Enter 20 into the Volume (final) box and select the correct unit (milliliter)
Press calculate
The answer of 100 microliter (0.1 ml) appears in the Volume (start) box


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Enter the chemical formula of a compound to calculate its molar mass and elemental composition

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Instructions to calculate molar mass (molecular weight) of a chemical compound:
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Definitions of molecular mass, molecular weight, molar mass and molar weight:
Molecular mass (molecular weight) is the mass of one molecule of a substance and is expressed n the unified atomic mass units (u). (1 u is equal to 1/12 the mass of one atom of carbon-12)
Molar mass (molar weight) is the mass of one mole of a substance and is expressed in g/mol.


Tech Support

Please see Inhibitor Handling Instructions for more frequently ask questions. Topics include: how to prepare stock solutions, how to store products, and cautions on cell-based assays & animal experiments, etc.


S-Nitrosohomocysteine 139427-42-2 S Nitrosohomocysteine SNitrosohomocysteine inhibitor inhibit