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Levomefolate calcium

Cat. No. M6108
Levomefolate calcium  Structure
Size Price Availability Quantity
10mg USD 45  USD45 In stock
50mg USD 65  USD65 In stock
100mg USD 110  USD110 In stock
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Quality Control & Documentation
Biological Activity

The calcium salt of L-5-methyltetrahydrofolic acid which belongs to the group of folate vitamins (Vitamin B9, Folacin). It is a coenzymated form of folic acid and a more bioavailable alternative in dietary supplements.

Chemical Information
Molecular Weight 497.52
Formula C20H23CaN7O6
CAS Number 151533-22-1
Form Solid
Solubility (25°C) 4.4 mg/mL in water
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] Diefenbach K, et al. Int J Womens Health. EE-drospirenone-levomefolate calcium versus EE-drospirenone + folic acid: folate status during 24 weeks of treatment and over 20 weeks following treatment cessation.

[2] Rapkin RB, et al. Expert Opin Pharmacother. The combined oral contraceptive pill containing drospirenone and ethinyl estradiol plus levomefolate calcium.

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