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Y0002071

Calcium folinate for system suitability

European Pharmacopoeia (EP) Reference Standard

Synonym(s):

Folinic acid calcium salt hydrate, 5-Formyl-5,6,7,8-tetrahydrofolic acid calcium salt, 5-Formyl-5,6,7,8-tetrahydropteroyl-L-glutamic acid calcium salt, 5-HCO-H4PteGlu, Calcium folinate, Citrovorum factor calcium salt, Leucovorin calcium salt

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About This Item

Empirical Formula (Hill Notation):
C20H21CaN7O7 · xH2O
CAS Number:
1492-18-8
Molecular Weight:
511.50 (anhydrous basis)
Beilstein/REAXYS Number:
5723924
UNSPSC Code:
41116107

biological source

synthetic

grade

pharmaceutical primary standard

agency

EP

API family

folic acid

form

solid

manufacturer/tradename

EDQM

technique(s)

gas chromatography (GC): suitable
liquid chromatography (LC): suitable

application(s)

pharmaceutical (small molecule)

format

neat

storage temp.

−20°C

SMILES string

[Ca++].[H]O[H].[H]C(=O)N1C(CNc2ccc(cc2)C(=O)N[C@@H](CCC([O-])=O)C([O-])=O)CNc3nc(N)nc(O)c13

InChI

1S/C20H23N7O7.Ca/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/p-2/t12?,13-;/m0./s1

InChI key

KVUAALJSMIVURS-ZEDZUCNESA-L

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Related Categories

General description

Calcium folinate, the reduced form of folic acid, finds application in the treatment of methotrexate overdose and in high-dose methotrexate chemotherapy as a chemotherapy protective drug to bring down the latter′s toxicity. When combined with fluorouracil, it is reported to be effective in the management of bowel cancer wherein it acts by inhibiting thymidylate synthase and augmenting the effect of fluorouracil.
This product is provided as delivered and specified by the issuing Pharmacopoeia. All information provided in support of this product, including SDS and any product information leaflets have been developed and issued under the Authority of the issuing Pharmacopoeia.For further information and support please go to the website of the issuing Pharmacopoeia.

Application

Calcium folinate for system suitability may be used as an EP reference standard for the determination of the analyte in pharmaceutical formulations by liquid chromatography.
Calcium folinate offsets the effects of folic acid antagonists that act by binding dihydrofolate reductase and blocking the conversion of folic acid to tetrahydrofolate. In medicine, calcium folinate is used after treatment with methotrexate to reduce the toxicity of the methotrexate. Calcium folinate is also used to enhance the cytotoxic effect of 5-fluorouracil in the treatment of cancer.

Packaging

The product is delivered as supplied by the issuing Pharmacopoeia. For the current unit quantity, please visit the EDQM reference substance catalogue.

Other Notes

Sales restrictions may apply.

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pictograms

Exclamation markHealth hazard
GHS07,GHS08

signalword

Danger

Hazard Classifications

Eye Irrit. 2 - Resp. Sens. 1 - Skin Irrit. 2 - Skin Sens. 1 - STOT SE 3

target_organs

Respiratory system

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Clinical Pharmacy Pocket Companion, 2nd edition
Clinical Pharmacy (2015)
Calcium folinate hydrate
European Pharmacopoeia Commission and European Directorate for the Quality of Medicines & Healthcare
European pharmacopoeia, 6579-6581 (2019)

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