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Merck
CN

C0250000

Calcium folinate

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)
NACRES:
NA.24
UNSPSC Code:
41116107
MDL number:
MFCD00149463
Beilstein/REAXYS Number:
5723924

Key Documents

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Product Name

Calcium folinate, European Pharmacopoeia (EP) Reference Standard

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

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 key

KVUAALJSMIVURS-ZEDZUCNESA-L

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.

2-8°C

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Application

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.

General description

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. Calcium folinate (CF) is a folic acid derivative. It is a naturally occurring compound that has a vital role in various metabolic pathways. Calcium folinate (CF) drug is also used in the treatment of anemia, during pregnancy.

Other Notes

Sales restrictions may apply.

Packaging

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

Storage Class

11 - Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

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LC- MS characterization of trace impurities contained in calcium folinate
Francese G, et al.
Journal of Pharmaceutical and Biomedical Analysis, 39(3-4), 757-763 (2005)
Rethi Raghu Nadhanan et al.
Journal of orthopaedic research : official publication of the Orthopaedic Research Society, 32(4), 587-596 (2013-12-19)
Methotrexate (MTX) chemotherapy is known to cause bone loss which lacks specific preventative treatments, although clinically folinic acid is often used to reduce MTX toxicity in soft tissues. This study investigated damaging effects of MTX injections (0.75 mg/kg/day for 5 days)
Zheng-mao Lu et al.
Tumour biology : the journal of the International Society for Oncodevelopmental Biology and Medicine, 35(4), 2941-2948 (2013-12-10)
Polymorphisms in the excision repair cross-complimentary group 1 (ERCC1)-excision repair cross-complimentary group 4 (ERCC4) genes have been implicated in the prognosis of various cancers. We conducted a cohort study to investigate the role of ERCC1-ERCC4 gene polymorphisms on the response
Na Yeon Han et al.
Radiology, 271(2), 416-425 (2014-01-31)
To retrospectively evaluate findings of chemotherapy-induced focal hepatopathy (CIFH) on gadoxetic acid-enhanced magnetic resonance (MR) and diffusion-weighted (DW) images and to determine imaging features that are most helpful in differentiating CIFH from metastasis. This retrospective study was approved by the
High cut-off dialysis as a salvage therapy option in high-dose methotrexate chemotherapy?
Anna Bertram et al.
Annals of hematology, 93(6), 1053-1055 (2013-10-08)
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