An internal standard for the quantification of ethylmalonic acid
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Ethylmalonic Acid-d3

Item No. 43923

Technical Information
Formal Name
ethyl-2,2,2-d3-propanedioic acid
CAS Number
70907-93-6
Synonyms
  • EMA-d3
Molecular Formula
C5H5D3O4
Formula Weight
Purity
≥99% deuterated forms (d1-d3)
A solid
DMSO: Soluble: ≥10 mg/mlEthanol: Soluble: ≥10 mg/mlPBS pH 7.2: Sparingly soluble: 1-10 mg/ml
SMILES
[2H]C([2H])(CC(C(O)=O)C(O)=O)[2H]
InChi Code
InChI=1S/C5H8O4/c1-2-3(4(6)7)5(8)9/h3H,2H2,1H3,(H,6,7)(H,8,9)/i1D3
InChi Key
UKFXDFUAPNAMPJ-FIBGUPNXSA-N
Shipping & Storage Information
Storage
-20°C
Shipping
Room temperature in continental US; may vary elsewhere
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    Product Description

    Ethylmalonic acid-d3 is intended for use as an internal standard for the quantification of ethylmalonic acid by GC- or LC-MS. Ethylmalonic acid is a dicarboxylic acid and metabolite of the essential amino acid L-isoleucine and branched-chain amino acid L-alloisoleucine (Item No. 34904).1 It is formed from L-isoleucine and L-alloisoleucine via an R-2-oxo-3-methylvaleric acid intermediate. Urinary levels of ethylmalonic acid are increased in patients with ethylmalonic encephalopathy, an inborn error of metabolism characterized by developmental delay, hypotonia, vascular instability, petechiae, acrocyanosis, chronic diarrhea, and lactic acidemia. Urinary levels of ethylmalonic acid are also increased in patients with short-chain acyl-CoA dehydrogenase deficiency.2

    WARNING This product is not for human or veterinary use.

    References & Product Citations
    Product Description References

    1. Nowaczyk, M.J.M., Lehotay, D.C., Platt, B.-A., et alEthylmalonic and methylsuccinic aciduria in ethylmalonic encephalopathy arise from abnormal isoleucine metabolism. Metabolism 47(7), 836-839 (1998).

    2. Gallant, N.M., Leydiker, K., Tang, H., et alBiochemical, molecular, and clinical characteristics of children with short chain acyl-CoA dehydrogenase deficiency detected by newborn screening in California. Mol. Genet. Metab. 106(1), 55-61 (2012).