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7-Methoxy-4,4-dimethyl-1H-2-benzopyran-1,3(4H)-dione

7-Methoxy-4,4-dimethyl-1H-2-benzopyran-1,3(4H)-dione structure

CAS No.: 55974-25-9

Chemical Name:: 7-Methoxy-4,4-dimethyl-1H-2-benzopyran-1,3(4H)-dione

Synonyms: Gliquidone Impurity 9;7-Methoxy-4,4-diMethylisochroMan-1,3-dione;7-Methoxy-4,4-dimethyl-1,3-isochromandione;7-methoxy-4,4-dimethylisochromene-1,3-dione;7-Methoxy-4,4-dimethylisochromane-1,3-dione;7-Methoxy-4,4-dimethyl-1,3-isobenzofurandione;7-Methoxy-4,4-dimethyl-1H-2-benzopyran-1,3(4H)-dione;1H-2-Benzopyran-1,3(4H)-dione, 7-methoxy-4,4-dimethyl-;7-methoxy-4,4-dimethyl-3,4-dihydro-1H-2-benzopyran-1,3-dione

CBNumber:: CB92604247

Molecular Formula:: C12H12O4

Molecular Weight:: 220.22

MDL Number:: MFCD06658239

MOL File:: 55974-25-9.mol

Last updated:2025-07-04 15:32:48

Product description	Number	Pack Size	Price
4,4-DIMETHYL-7-METHOXYISOCHROMAN-1,3-DIONE 95.00%	CHM0079061	5G	$909.56
7-Methoxy-4,4-dimethylisochroman-1,3-dione	55974259	1g	$386.88
7-methoxy-4,4-dimethylisochroman-1,3-dione 95%	CM162552	1g	$430
7-Methoxy-4,4-dimethylisochroman-1,3-dione 95+%	CD11104285	1g	$455
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7-Methoxy-4,4-dimethyl-1H-2-benzopyran-1,3(4H)-dione Properties

Boiling point	366.9±42.0 °C(Predicted)
Density	1.205
storage temp.	2-8°C
InChI	InChI=1S/C12H12O4/c1-12(2)9-5-4-7(15-3)6-8(9)10(13)16-11(12)14/h4-6H,1-3H3
InChIKey	XAFPBWJMFWANOI-UHFFFAOYSA-N
SMILES	C1(=O)OC(=O)C2=CC(OC)=CC=C2C1(C)C

SAFETY

Risk and Safety Statements

Symbol(GHS)	GHS05,GHS06
Signal word	Danger
Hazard statements	H301-H311-H314-H331
Precautionary statements	P260-P264-P270-P271-P280-P301+P330+P331-P302+P352-P303+P361+P353-P304+P340-P305+P351+P338-P310-P403+P233-P405-P501

7-Methoxy-4,4-dimethyl-1H-2-benzopyran-1,3(4H)-dione price

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
American Custom Chemicals Corporation	CHM0079061	4,4-DIMETHYL-7-METHOXYISOCHROMAN-1,3-DIONE 95.00%	55974-25-9	5G	$909.56	2021-12-16	Buy
Alichem	55974259	7-Methoxy-4,4-dimethylisochroman-1,3-dione	55974-25-9	1g	$386.88	2021-12-16	Buy
Chemenu	CM162552	7-methoxy-4,4-dimethylisochroman-1,3-dione 95%	55974-25-9	1g	$430	2021-12-16	Buy
Crysdot	CD11104285	7-Methoxy-4,4-dimethylisochroman-1,3-dione 95+%	55974-25-9	1g	$455	2021-12-16	Buy

Product number	Packaging	Price	Buy
CHM0079061	5G	$909.56	Buy
55974259	1g	$386.88	Buy
CM162552	1g	$430	Buy
CD11104285	1g	$455	Buy

7-Methoxy-4,4-dimethyl-1H-2-benzopyran-1,3(4H)-dione Preparation Products And Raw materials

Raw materials

Preparation Products

7-Methoxy-4,4-dimethyl-1H-2-benzopyran-1,3(4H)-dione Suppliers

Global( 43)Suppliers

Supplier	Tel	Email	Country	ProdList	Advantage
Guangzhou Tosun Pharmaceutical Ltd	+86-020-61855200-902 +8618124244216	info@upharm.cn	China	897	58
career henan chemical co	+86-0371-86658258 +8613203830695	sales@coreychem.com	China	29831	58
Alchem Pharmtech,Inc.	8485655694	sales@alchempharmtech.com	United States	63687	58
CONIER CHEM AND PHARMA LIMITED	+8618523575427	sales@conier.com	China	49977	58
Hefei TNJ Chemical Industry Co.,Ltd.	+86-0551-65418671 +8618949823763	sales@tnjchem.com	China	34563	58
Baoji Guokang Healthchem co.,ltd	+8615604608665 15604608665	dominicguo@gk-bio.com	CHINA	9414	58
GIHI CHEMICALS CO.,LIMITED	+86-571-86217390; +8618058761490	info@gihichemicals.com	China	49964	58
SUZHOU SENFEIDA CHEMICAL CO.,LTD	+86-0512-83500002 +8618662433356	3899766280@qq.com	China	26362	58
XIAMEN AMITY INDUSTRY AND TRADE CO., LTD.	+8618950047208	ellena@amitychem.com	China	43416	58
DAYANG CHEM (HANGZHOU) CO.,LTD	+86-88938639 +86-17705817739	info@dycnchem.com	China	53899	58

Supplier	Advantage
Guangzhou Tosun Pharmaceutical Ltd	58
career henan chemical co	58
Alchem Pharmtech,Inc.	58
CONIER CHEM AND PHARMA LIMITED	58
Hefei TNJ Chemical Industry Co.,Ltd.	58
Baoji Guokang Healthchem co.,ltd	58
GIHI CHEMICALS CO.,LIMITED	58
SUZHOU SENFEIDA CHEMICAL CO.,LTD	58
XIAMEN AMITY INDUSTRY AND TRADE CO., LTD.	58
DAYANG CHEM (HANGZHOU) CO.,LTD	58

View Lastest Price from 7-Methoxy-4,4-dimethyl-1H-2-benzopyran-1,3(4H)-dione manufacturers

Image	Update time	Product	Price	Min. Order	Purity	Supply Ability	Manufacturer
	2025-12-19	Gliquidone Impurity 13 55974-25-9	US $0.00-0.00 / mg	5mg	95%+	1000mg	Guangzhou Tosun Pharmaceutical Ltd
	2019-07-06	7-methoxy-4,4-dimethylisochromene-1,3-dione 55974-25-9	US $1.00 / KG	1KG	98%	100KG	Career Henan Chemical Co

Gliquidone Impurity 13
55974-25-9
US $0.00-0.00 / mg
95%+
Guangzhou Tosun Pharmaceutical Ltd

7-methoxy-4,4-dimethylisochromene-1,3-dione
55974-25-9
US $1.00 / KG
98%
Career Henan Chemical Co

7-Methoxy-4,4-dimethyl-1,3-isochromandione 7-Methoxy-4,4-dimethyl-1H-2-benzopyran-1,3(4H)-dione 7-Methoxy-4,4-diMethylisochroMan-1,3-dione 7-methoxy-4,4-dimethylisochromene-1,3-dione 7-methoxy-4,4-dimethyl-3,4-dihydro-1H-2-benzopyran-1,3-dione 1H-2-Benzopyran-1,3(4H)-dione, 7-methoxy-4,4-dimethyl- Gliquidone Impurity 9 7-Methoxy-4,4-dimethylisochromane-1,3-dione 7-Methoxy-4,4-dimethyl-1,3-isobenzofurandione 55974-25-9