Gram's iodine

About Gram's iodine

Gram's iodine is a biological stain in Microscopy grade carrying the CAS registry number 12298-68-9 at a purity of 33.0%. Formula I3K, molecular weight 419.81 g/mol. Systematically, it is named potassium triiodide. Alternative names: Lugol's iodine and Microiodide.

The material typically appears as reddish brown powder or crystals or chunks. Keep the container tightly sealed and store it in a cool, dry area. Good laboratory practice and suitable PPE are recommended during handling.

Key uses span histology and cytology staining, microscopy, clinical laboratories and biological staining. Our customers for this product work in academic and industrial research, diagnostics and biotechnology and textiles and dyeing.

Standard pack sizes are 25 g, 100 g and 1 kg, and every batch ships with a Certificate of Analysis (COA) and we export worldwide.

Typical applications

Histology & cytology staining
Microscopy
Clinical laboratories
Biological staining

Industries

Specifications & identifiers

Chemical identifiers
Product name	Gram's iodine
Catalogue No.	VQ-000600
CAS Number	12298-68-9
IUPAC name	potassium triiodide
Molecular formula	I₃K
Molecular weight	419.81 g/mol
Exact mass	419.6771
Grade	Microscopy
Purity / assay	33.0%
HSN code	38229090
InChIKey	DKNPRRRKHAEUMW-UHFFFAOYSA-N
SMILES	[K+].I[I-]I
PubChem CID	105053

Physical properties
Physical form	Crystalline
Appearance	Reddish brown powder or crystals or chunks
H-bond donors / acceptors	0 / 1
TPSA	0 Å²
Synonyms	Lugol's iodine, Microiodide, Iodine aqueous, Potassium iodide (K(I3)), Lugols strong iodine, Iodine-potassium iodide, Gram inverted exclamation markas Iodine

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 Gram's iodine?

The CAS Registry Number of Gram's iodine is 12298-68-9. It is also known as Lugol's iodine, Microiodide, Iodine aqueous.

What is the molecular formula and molecular weight of Gram's iodine?

Gram's iodine has the molecular formula I3K and a molecular weight of 419.81 g/mol. Its IUPAC name is potassium triiodide.

Which grade and pack sizes of Gram's iodine can I order?

We supply Gram's iodine in Microscopy (33.0%) grade, in 25 g, 100 g, 1 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Gram's iodine?

Yes. Every lot of Gram's iodine 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 Gram's iodine be shipped internationally?

Yes. We export Gram's iodine worldwide by air and sea freight or express courier, on EXW, FOB, CIF, CFR or DAP Incoterms, with full export documentation.