LEUCOVORIN CALCIUM PENTAHYDRATE
UNII R3W57OBQ5W

Substance Identification & Data

This profile provides standardized clinical and technical data for Leucovorin Calcium Pentahydrate, uniquely identified by the FDA Unique Ingredient Identifier (UNII) R3W57OBQ5W.

Technical mappings include the Chemical Abstracts Service (CAS) Registry Number 6035-45-6 and the RxNorm Concept ID (RxCUI) N/A. Explore the sections below for detailed nomenclature and a complete directory of NDC-listed products containing this ingredient.

FDA UNII Code

R3W57OBQ5W

CAS Registry Number

6035-45-6

RxNorm Concept ID

N/A

Detailed Substance Profile

Preferred Name

LEUCOVORIN CALCIUM PENTAHYDRATE

Official standardized name for this substance within the FDA UNII nomenclature system.

InChIKey

C20H21N7O7.Ca.5H2O

International Chemical Identifier digital signature for unique molecular identification.

SMILES String

NPPBLUASYYNAIG-ZIGBGYJWSA-L

Line notation for describing the chemical structure and connectivity of atoms.

NCI Thesaurus

C218012

National Cancer Institute reference terminology for clinical and research data.

PubChem CID

135802074

Unique identification number in the NCBI database of chemical substances.

Substance Type

chemical

ISO 11238 classification category (e.g., Chemical, Polymer, Protein).

Ingredient Role

[O-]C(=O)[C@H](CCC(=O)[O-])NC(=O)c1ccc(cc1)NCC2CNc3[nH]c(N)nc(=O)c3N2C=O.[Ca+2].O.O.O.O.O

Synonyms and Nomenclature

This section provides a complete list of nomenclature and identifier mappings for Leucovorin Calcium Pentahydrate. Identifiers are organized into official regulatory terms, commercial trade names, and technical systematic synonyms used to ensure accurate identification across clinical pharmaceutical databases, regulatory filings, and electronic health records.