Levomefolate calcium

    WARNING: This product is for research use only, not for human or veterinary use.

MedKoo CAT#: 329884

CAS#: 151533-22-1 (calcium)

Description: Levomefolate calcium, also known as LMCA and BAY 86-7660, is the calcium salt of 5-methyltetrahydrofolic acid, a biologically active form of folic acid that functions, in conjunction with Vitamin B12 , as a methyl-group donor involved in the conversion of homocysteine to methionine. Levomefolate is included in formulations of certain oral contraceptives to ensure adequate folic acid levels in women of child-bearing age to reduce the risk of neural tube defects.

Price and Availability


USD 195
USD 2850

USD 450

USD 850

Levomefolate calcium, purity > 98%, is in stock. Current shipping out time is about 2 weeks after order is received. CoA, QC data and MSDS documents are available in one week after order is received.

Chemical Structure


Theoretical Analysis

MedKoo Cat#: 329884
Name: Levomefolate calcium
CAS#: 151533-22-1 (calcium)
Chemical Formula: C20H23CaN7O6
Exact Mass:
Molecular Weight: 497.52
Elemental Analysis: C, 48.28; H, 4.66; Ca, 8.06; N, 19.71; O, 19.29

Related CAS #: 151533-22-1 (calcium)   31690-09-2 (free acid)   419563-18-1 (calcium pentahydrate)    

Synonym: BAY 86-7660; BAY-86-7660; BAY86-7660; BAY 867660; BAY-867660; BAY867660; Levomefolate calcium; LMCA; Bodyfolin, Deplin; L-Methylfolate calcium; Levomefolate calcium; Levomefolinate calcium; Metafolin; Nutrifolin

IUPAC/Chemical Name: calcium (4-((((S)-2-amino-5-methyl-4-oxo-1,4,5,6,7,8-hexahydropteridin-6-yl)methyl)amino)benzoyl)-L-glutamate


InChi Code: InChI=1S/C20H25N7O6.Ca/c1-27-12(9-23-16-15(27)18(31)26-20(21)25-16)8-22-11-4-2-10(3-5-11)17(30)24-13(19(32)33)6-7-14(28)29;/h2-5,12-13,22H,6-9H2,1H3,(H,24,30)(H,28,29)(H,32,33)(H4,21,23,25,26,31);/q;+2/p-2/t12-,13-;/m0./s1

SMILES Code: O=C1C2=C(NC[C@H](CNC3=CC=C(C(N[C@H](C([O-])=O)CCC([O-])=O)=O)C=C3)N2C)NC(N)=N1.[Ca+2]

Technical Data

Solid powder

>98% (or refer to the Certificate of Analysis)

Shipping Condition:
Shipped under ambient temperature as non-hazardous chemical. This product is stable enough for a few weeks during ordinary shipping and time spent in Customs.

Storage Condition:
Dry, dark and at 0 - 4 C for short term (days to weeks) or -20 C for long term (months to years).

Soluble in DMSO

Shelf Life:
>2 years if stored properly

Drug Formulation:
This drug may be formulated in DMSO

Stock Solution Storage:
0 - 4 C for short term (days to weeks), or -20 C for long term (months).

Harmonized System Code:


1: Shelton RC, Pencina MJ, Barrentine LW, Ruiz JA, Fava M, Zajecka JM, Papakostas GI. Association of obesity and inflammatory marker levels on treatment outcome: results from a double-blind, randomized study of adjunctive L-methylfolate calcium in patients with MDD who are inadequate responders to SSRIs. J Clin Psychiatry. 2015 Dec;76(12):1635-41. doi: 10.4088/JCP.14m09587. PubMed PMID: 26613389.

2: Diefenbach K, Trummer D, Ebert F, Lissy M, Koch M, Rohde B, Blode H. EE-drospirenone-levomefolate calcium versus EE-drospirenone + folic acid: folate status during 24 weeks of treatment and over 20 weeks following treatment cessation. Int J Womens Health. 2013 Apr 11;5:149-63. doi: 10.2147/IJWH.S37254. Print 2013. PubMed PMID: 23610531; PubMed Central PMCID: PMC3628530.

3: Nelson AL. Comprehensive evaluation of Safyral(®) 2012. Womens Health (Lond). 2012 Nov;8(6):619-33. doi: 10.2217/whe.12.50. Review. PubMed PMID: 23181528.

4: Wiesinger H, Eydeler U, Richard F, Trummer D, Blode H, Rohde B, Diefenbach K. Bioequivalence evaluation of a folate-supplemented oral contraceptive containing ethinylestradiol/drospirenone/levomefolate calcium versus ethinylestradiol/drospirenone and levomefolate calcium alone. Clin Drug Investig. 2012 Oct 1;32(10):673-84. doi: 10.2165/11635280-000000000-00000. PubMed PMID: 22909145.

5: Fruzzetti F. Beyaz®: an oral contraceptive fortified with folate. Womens Health (Lond). 2012 Jan;8(1):13-9. doi: 10.2217/whe.11.68. Review. PubMed PMID: 22171769.

6: Bart S Sr, Marr J, Diefenbach K, Trummer D, Sampson-Landers C. Folate status and homocysteine levels during a 24-week oral administration of a folate-containing oral contraceptive: a randomized, double-blind, active-controlled, parallel-group, US-based multicenter study. Contraception. 2012 Jan;85(1):42-50. doi: 10.1016/j.contraception.2011.05.013. Epub 2011 Jul 13. PubMed PMID: 22067790.

7: Blode H, Klipping C, Richard F, Trummer D, Rohde B, Diefenbach K. Bioequivalence study of an oral contraceptive containing ethinylestradiol/drospirenone/levomefolate calcium relative to ethinylestradiol/drospirenone and to levomefolate calcium alone. Contraception. 2012 Feb;85(2):177-84. doi: 10.1016/j.contraception.2011.05.015. Epub 2011 Jul 19. PubMed PMID: 22067789.

8: Rapkin RB, Creinin MD. The combined oral contraceptive pill containing drospirenone and ethinyl estradiol plus levomefolate calcium. Expert Opin Pharmacother. 2011 Oct;12(15):2403-10. doi: 10.1517/14656566.2011.610791. Epub 2011 Aug 31. Review. PubMed PMID: 21877996.