d5-Galactosyl-ß-sphingosine (d18:1) ("d5-Psychosine") is the internal standard for the biomarker for the deficiency of galactosylceramidase (GALC) caused by mutations in the GALC gene.
The absolute amount of d5-Psychosine in the vial was determined using quantitative NMR to have the stated value on the vial. The vial may have additional components but none are isobaric with Psychosine or d5-Psychosine and none interfere with quantitation of Psychosine.
Krabbe
d5-Psychosine
SKU: BM24D-100
d5-Psychosine
Catalog Number: BM24D
Chemical Formula: C24 H42 D5 N O7
Molecular Weight: 466.67
- Herbst, Z., Turgeon, C.T., Biski, C., Khaledi, H., Shoemaker, N.B., DeArmond, P.D., Smith, S., Orsini, J., Matern, D. and Gelb, M.H., 2020. Achieving congruence among reference laboratories for absolute abundance measurement of analytes for rare diseases: Psychosine for diagnosis and prognosis of Krabbe disease. International journal of neonatal screening, 6(2), p.29. DOI: 10.3390/ijns6020029