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Technical details about Leucovorin Sodium, learn more about the structure, uses, toxicity, action, side effects and more

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2D Structure
1. Also known as: Sodium folinate, Oncofolic, Folinic acid disodium, Disodium folinate, 4mxu9ljs4q, 163254-40-8
Molecular Formula
C20H21N7Na2O7
Molecular Weight
517.4  g/mol
InChI Key
FSDMNNPYPVJNAT-RIWFDJIXSA-L
FDA UNII
4MXU9LJS4Q

Leucovorin Sodium is the sodium salt of leucovorin, an active metabolite of folic acid, used as an antidote to folic acid antagonists. Leucovorin does not require metabolism by dihydrofolate reductase, the molecular target of folate antagonists and counteracts the toxic effects of these drugs. This agent also potentiates the effects of fluorouracil and its derivatives by stabilizing the binding of the drug's metabolite to its target enzyme, thus prolonging drug activity. In comparison with the calcium salt, sodium salt does not form precipitate when mixed other folate antagonists.
1 2D Structure

2D Structure

2 Identification
2.1 Computed Descriptors
2.1.1 IUPAC Name
disodium;(2S)-2-[[4-[(2-amino-5-formyl-4-oxo-3,6,7,8-tetrahydropteridin-6-yl)methylamino]benzoyl]amino]pentanedioate
2.1.2 InChI
InChI=1S/C20H23N7O7.2Na/c21-20-25-16-15(18(32)26-20)27(9-28)12(8-23-16)7-22-11-3-1-10(2-4-11)17(31)24-13(19(33)34)5-6-14(29)30;;/h1-4,9,12-13,22H,5-8H2,(H,24,31)(H,29,30)(H,33,34)(H4,21,23,25,26,32);;/q;2*+1/p-2/t12?,13-;;/m0../s1
2.1.3 InChI Key
FSDMNNPYPVJNAT-RIWFDJIXSA-L
2.1.4 Canonical SMILES
C1C(N(C2=C(N1)N=C(NC2=O)N)C=O)CNC3=CC=C(C=C3)C(=O)NC(CCC(=O)[O-])C(=O)[O-].[Na+].[Na+]
2.1.5 Isomeric SMILES
C1C(N(C2=C(N1)N=C(NC2=O)N)C=O)CNC3=CC=C(C=C3)C(=O)N[C@@H](CCC(=O)[O-])C(=O)[O-].[Na+].[Na+]
2.2 Other Identifiers
2.2.1 UNII
4MXU9LJS4Q
2.3 Synonyms
2.3.1 Depositor-Supplied Synonyms

1. Sodium Folinate

2. Oncofolic

3. Folinic Acid Disodium

4. Disodium Folinate

5. 4mxu9ljs4q

6. 163254-40-8

7. Unii-4mxu9ljs4q

8. Chembl3707260

9. Sodium Folinate [mart.]

10. Sodium Folinate [who-dd]

11. Q27260173

12. L-glutamic Acid, N-(4-(((2-amino-5-formyl-1,4,5,6,7,8-hexahydro-4-oxo-6-pteridinyl)methyl)amino)benzoyl)-, Disodium Salt

2.4 Create Date
2019-01-21
3 Chemical and Physical Properties
Molecular Weight 517.4 g/mol
Molecular Formula C20H21N7Na2O7
Hydrogen Bond Donor Count5
Hydrogen Bond Acceptor Count10
Rotatable Bond Count7
Exact Mass517.12978460 g/mol
Monoisotopic Mass517.12978460 g/mol
Topological Polar Surface Area221 Ų
Heavy Atom Count36
Formal Charge0
Complexity900
Isotope Atom Count0
Defined Atom Stereocenter Count1
Undefined Atom Stereocenter Count1
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
Covalently Bonded Unit Count3
4 Pharmacology and Biochemistry
4.1 ATC Code

V - Various

V03 - All other therapeutic products

V03A - All other therapeutic products

V03AF - Detoxifying agents for antineoplastic treatment

V03AF06 - Sodium folinate


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