Riboflavin Impurity 3

Name: Riboflavin Impurity 3
Brand: Vaqora Chemicals
SKU: VQ-034660

About Riboflavin Impurity 3

Vaqora Chemicals supplies Riboflavin Impurity 3, an impurity of Riboflavin registered under CAS number 64480-68-8. Formula C16H20N2O7, molecular weight 352.34 g/mol. Systematically, it is named 6,7-dimethyl-3-oxo-4-[(2S,3S,4R)-2,3,4,5-tetrahydroxypentyl]quinoxaline-2-carboxylic acid. Common synonyms include Vitamin B2 EP Impurity E and Riboflavin impurity E.

It is supplied as a solid. Reference materials should be stored sealed and away from light and moisture, as specified on the accompanying COA. Handle it with standard laboratory precautions and appropriate personal protective equipment.

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

We offer Riboflavin Impurity 3 in 10 mg, 25 mg, 50 mg and 100 mg packs with a batch-specific COA, and ship to customers worldwide.

Typical applications

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

Industries

Related to Riboflavin

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

Riboflavin impurities

Specifications & identifiers

Chemical identifiers
Product name	Riboflavin Impurity 3
Catalogue No.	VQ-034660
CAS Number	64480-68-8
IUPAC name	6,7-dimethyl-3-oxo-4-[(2S,3S,4R)-2,3,4,5-tetrahydroxypentyl]quinoxaline-2-carboxylic acid
Molecular formula	C₁₆H₂₀N₂O₇
Molecular weight	352.34 g/mol
Exact mass	352.1271
Grade	Reference Standard
HSN code	38229090
InChIKey	HASRQDXCKZETLY-SCRDCRAPSA-N
SMILES	CC1=CC2=C(C=C1C)N(C(=O)C(=N2)C(=O)O)C[C@@H]([C@@H]([C@@H](CO)O)O)O
PubChem CID	56612501

Physical properties
Physical form	Solid
LogP (XLogP3)	-0.4
H-bond donors / acceptors	5 / 8
TPSA	151 Å²

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 Riboflavin Impurity 3?

The CAS Registry Number of Riboflavin Impurity 3 is 64480-68-8. It is also known as Vitamin B2 EP Impurity E, Riboflavin impurity E.

What is the molecular formula and molecular weight of Riboflavin Impurity 3?

Riboflavin Impurity 3 has the molecular formula C16H20N2O7 and a molecular weight of 352.34 g/mol. Its IUPAC name is 6,7-dimethyl-3-oxo-4-[(2S,3S,4R)-2,3,4,5-tetrahydroxypentyl]quinoxaline-2-carboxylic acid.

What is Riboflavin Impurity 3 used for?

Riboflavin Impurity 3 is supplied as a characterised reference material related to Riboflavin. 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 Riboflavin Impurity 3 can I order?

We supply Riboflavin Impurity 3 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 Riboflavin Impurity 3?

Yes. Every lot of Riboflavin Impurity 3 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 Riboflavin Impurity 3 be shipped internationally?

Yes. We export Riboflavin Impurity 3 worldwide by air and sea freight or express courier, on EXW, FOB, CIF, CFR or DAP Incoterms, with full export documentation.