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DL-Homocystine

Cat. No. M39109
DL-Homocystine Structure
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Biological Activity

DL-Homocystine is the double-bonded form of homocysteine and homocysteine is recognized as an important substance in the pathogenesis and pathophysiology of schizophrenia.

Chemical Information
Molecular Weight 268.35
Formula C8H16N2O4S2
CAS Number 870-93-9
Form Solid
Solubility (25°C) Water 10 mg/mL (ultrasonic and adjust pH to 11 with NaOH)
Storage Powder          -20°C   3 years ;  4°C   2 years
In solvent       -80°C   6 months ;  -20°C   1 month
Conversion of different model animals based on BSA (PMID: 27057123)
Species Mouse Rat Rabbit Guinea pig Hamster Dog
Weight (kg) 0.02 0.15 1.8 0.4 0.08 10
Body Surface Area (m2) 0.007 0.025 0.15 0.05 0.02 0.5
Km factor 3 6 12 8 5 20
Animal A (mg/kg) = Animal B (mg/kg) multiplied by  Animal B Km
Animal A Km

For example, to modify the dose of Compound A used for a mouse (20 mg/kg) to a dose based on the BSA for a rat, multiply 20 mg/kg by the Km factor for a mouse and then divide by the Km factor for a rat. This calculation results in a rat equivalent dose for Compound A of 10 mg/kg.

References

[1] Xin-Ran Guo et al. Spectrochim Acta A Mol Biomol Spectrosc. Sophorajaponica L. flower mediated carbon dots with nitrogen and sulfur co-doped as a sensitive fluorescent probe for amoxicillin detection

[2] C E LANKFORD et al. Proc Soc Exp Biol Med. Effect of methionine upon utilization of DL-homocystine by Brucella suis

[3] M A Hilton et al. Cancer Res. Effect of methotrexate with 5-methyltetrahydrofolate rescue and dietary homocystine on survival of leukemic mice and on concentrations of liver adenosylamino acids

[4] N P Sen et al. Can J Biochem. Increased excretion of formimino-glutamic acid by vitamin B12-deficient rats after a load of DL-homocystine or oxidized glutathione

[5] M W Orth et al. J Nutr. Excess levels of cysteine and homocysteine induce tibial dyschondroplasia in broiler chicks

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