DL-Carnitine

About DL-Carnitine

DL-Carnitine is an impurity of Colesevelam carrying the CAS registry number 406-76-8. With the molecular formula C7H15NO3, it has a molar mass of 161.2 g/mol. Systematically, it is named 3-hydroxy-4-(trimethylazaniumyl)butanoate. Common synonyms include Carnitine and (3-carboxy-2-hydroxypropyl)-trimethylazanium.

It is supplied as a solid. Store the standard in its sealed vial, protected from light and moisture, and follow the storage condition printed on the COA. Good laboratory practice and suitable PPE are recommended during handling.

As a characterised impurity of Colesevelam, it is used for analytical method development, method validation (AMV) and routine quality-control testing, and it supports ANDA and DMF regulatory filings. It is used across pharmaceutical manufacturing and academic and industrial research.

Standard pack sizes are 10 mg, 25 mg, 50 mg and 100 mg, and every batch ships with a Certificate of Analysis (COA) and we export worldwide.

Typical applications

Analytical method development
Method validation (AMV)
QC release testing
ANDA / DMF filings

Industries

Related to Colesevelam

View every impurity, metabolite and intermediate we list for Colesevelam.

Colesevelam impurities

Specifications & identifiers

Chemical identifiers
Product name	DL-Carnitine
Catalogue No.	VQ-032343
CAS Number	406-76-8
IUPAC name	3-hydroxy-4-(trimethylazaniumyl)butanoate
Molecular formula	C₇H₁₅NO₃
Molecular weight	161.2 g/mol
Exact mass	161.1052
Grade	Reference Standard
HSN code	38229090
InChIKey	PHIQHXFUZVPYII-UHFFFAOYSA-N
SMILES	C[N+](C)(C)CC(CC(=O)[O-])O
PubChem CID	288

Physical properties
Physical form	Solid
LogP (XLogP3)	-0.2
H-bond donors / acceptors	1 / 3
TPSA	60.4 Å²
Synonyms	Carnitine, (3-Carboxy-2-hydroxypropyl)trimethylammonium hydroxide inner salt, (3-carboxy-2-hydroxypropyl)-trimethylazanium, Carnitine dl-, (3-carboxy-2-hydroxypropyl)trimethylazanium, 3-hydroxy-4-(trimethylammonio)butanoate, Carnitine DL-form, L(-)-Carnitine, 3-hydroxy-4-trimethylammoniobutanoate, (+/-)-Carnitin, 1-Propanaminium, 3-carboxy-2-hydroxy-N,N,N-trimethyl-, inner salt,(2R)-

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Frequently asked questions

What is the CAS number of DL-Carnitine?

The CAS Registry Number of DL-Carnitine is 406-76-8. It is also known as Carnitine, (3-Carboxy-2-hydroxypropyl)trimethylammonium hydroxide inner salt, (3-carboxy-2-hydroxypropyl)-trimethylazanium.

What is the molecular formula and molecular weight of DL-Carnitine?

DL-Carnitine has the molecular formula C7H15NO3 and a molecular weight of 161.2 g/mol. Its IUPAC name is 3-hydroxy-4-(trimethylazaniumyl)butanoate.

What is DL-Carnitine used for?

DL-Carnitine is supplied as a characterised reference material related to Colesevelam. It is used for analytical method development and validation (AMV), impurity profiling, stability studies and quality control, and in ANDA/DMF regulatory filings.

Which grade and pack sizes of DL-Carnitine can I order?

We supply DL-Carnitine in Reference Standard grade, in 10 mg, 25 mg, 50 mg, 100 mg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with DL-Carnitine?

Yes. Every lot of DL-Carnitine is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can DL-Carnitine be shipped internationally?

Yes. We export DL-Carnitine worldwide by air and sea freight or express courier, on EXW, FOB, CIF, CFR or DAP Incoterms, with full export documentation.