4-(Dicyanomethylene)-2-methyl-6-(4-dimethylam… 51325-91-8

Name: 4-(Dicyanomethylene)-2-methyl-6-(4-dimethylaminostyryl)-4H-pyran, dye content 98%
Brand: Vaqora Chemicals
SKU: VQ-018730

About 4-(Dicyanomethylene)-2-methyl-6-(4-dimethylaminostyryl)-4H-pyran, dye content 98%

4-(Dicyanomethylene)-2-methyl-6-(4-dimethylaminostyryl)-4H-pyran is a dye carrying the CAS registry number 51325-91-8, specified at 98% purity. Its molecular formula is C19H17N3O and its molecular weight is 303.4 g/mol. Its systematic (IUPAC) name is 2-[2-[(E)-2-[4-(dimethylamino)phenyl]ethenyl]-6-methylpyran-4-ylidene]propanedinitrile. Common synonyms include DCM and DCM (dye).

In its supplied form it is dark red to brown powder or crystals. Literature values give a melting point of 215-220 °C. Store in a tightly closed container in a cool, dry and well-ventilated place. Handle it with standard laboratory precautions and appropriate personal protective equipment.

Key uses span textile dyeing, paper and leather colouring, inks and coatings and dyes and pigments manufacture. It is used across textiles and dyeing, paints and coatings and electronics and semiconductors.

Vaqora Chemicals supplies 4-(Dicyanomethylene)-2-methyl-6-(4-dimethylaminostyryl)-4H-pyran in 250 mg, 1 g and 25 g packs, each shipped with a Certificate of Analysis (COA), and exports worldwide.

Typical applications

Textile dyeing
Paper & leather colouring
Inks & coatings
Dyes & pigments manufacture

Industries

Specifications & identifiers

Chemical identifiers
Product name	4-(Dicyanomethylene)-2-methyl-6-(4-dimethylaminostyryl)-4H-pyran, dye content 98%
Catalogue No.	VQ-018730
CAS Number	51325-91-8
IUPAC name	2-[2-[(E)-2-[4-(dimethylamino)phenyl]ethenyl]-6-methylpyran-4-ylidene]propanedinitrile
Molecular formula	C₁₉H₁₇N₃O
Molecular weight	303.4 g/mol
Exact mass	303.1372
Purity / assay	98%
HSN code	29420090
InChIKey	YLYPIBBGWLKELC-RMKNXTFCSA-N
SMILES	CC1=CC(=C(C#N)C#N)C=C(O1)/C=C/C2=CC=C(C=C2)N(C)C
PubChem CID	688222

Physical properties
Physical form	Crystalline
Appearance	Dark red to brown powder or crystals
Melting point	215-220 °C
LogP (XLogP3)	3.4
H-bond donors / acceptors	0 / 4
TPSA	60.1 Å²
UN number	UN 3175
Synonyms	DCM, 4-(Dicyanomethylene)-2-methyl-6-(4-(dimethylamino)styryl)-4H-pyran, DCM (dye), 4-Dicyanomethylene-6-(p-dimethylaminostyryl)-2-methyl-4H-pyran, (2-(p-(Dimethylamino)styryl)-6-methyl-4H-pyran-4-ylidene)malononitrile, (2-(2-(4-(Dimethylamino)phenyl)ethenyl)-6-methyl-4H-pyran-4-ylidene)-, (E)-, (2-(2-(4-(Dimethylamino)phenyl)ethenyl)-6-methyl-4H-pyran-4-ylidene)propanedinitrile, 4H-Pyran-delta4,alpha-malononitrile, 2-(p-dimethylaminostyryl)-6-methyl-, (2-{2-[4-(dimethylamino)phenyl]ethenyl}-6-methyl-4H-pyran-4-ylidene)malononitrile, (2-(2-(4-(dimethylamino)phenyl)ethenyl)-6-methyl-4H-pyran-4-ylidene)malononitrile, 4-(dicyanomethylene)-2-methyl-6-(p-(dimethylamino)styryl)-4h-pyran, DCM dye

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 4-(Dicyanomethylene)-2-methyl-6-(4-dimethylaminostyryl)-4H-pyran, dye content 98%?

The CAS Registry Number of 4-(Dicyanomethylene)-2-methyl-6-(4-dimethylaminostyryl)-4H-pyran, dye content 98% is 51325-91-8. It is also known as DCM, 4-(Dicyanomethylene)-2-methyl-6-(4-(dimethylamino)styryl)-4H-pyran, DCM (dye).

What is the molecular formula and molecular weight of 4-(Dicyanomethylene)-2-methyl-6-(4-dimethylaminostyryl)-4H-pyran, dye content 98%?

4-(Dicyanomethylene)-2-methyl-6-(4-dimethylaminostyryl)-4H-pyran, dye content 98% has the molecular formula C19H17N3O and a molecular weight of 303.4 g/mol. Its IUPAC name is 2-[2-[(E)-2-[4-(dimethylamino)phenyl]ethenyl]-6-methylpyran-4-ylidene]propanedinitrile.

Which grade and pack sizes of 4-(Dicyanomethylene)-2-methyl-6-(4-dimethylaminostyryl)-4H-pyran, dye content 98% can I order?

We supply 4-(Dicyanomethylene)-2-methyl-6-(4-dimethylaminostyryl)-4H-pyran, dye content 98% in (98%) grade, in 250 mg, 1 g, 25 g packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with 4-(Dicyanomethylene)-2-methyl-6-(4-dimethylaminostyryl)-4H-pyran, dye content 98%?

Yes. Every lot of 4-(Dicyanomethylene)-2-methyl-6-(4-dimethylaminostyryl)-4H-pyran, dye content 98% 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 4-(Dicyanomethylene)-2-methyl-6-(4-dimethylaminostyryl)-4H-pyran, dye content 98% be shipped internationally?

Yes. 4-(Dicyanomethylene)-2-methyl-6-(4-dimethylaminostyryl)-4H-pyran, dye content 98% is classified as hazardous (UN 3175), so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.