2,3-Dimethylmaleic anhydride

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1 Kilogram	FOB Price: USD 1.0000

1 Kilogram

FOB Price: USD 1.0000

766-39-2 2,3-Dimethylmaleic anhydride 3,4-Dimethyl-2,5-furandione

Name: 2, 3-dimethyl maleic anhydride; Dimethyl maleic anhydride; Dimethyl maleic anhydride

2,3-Dimethylmaleic anhydride Dimethylmaleic anhydride; 3, 4 - Dimethyl - 2, 5 - furandione

CAS: 766-39-2

Molecular formula: C6H6O3

Molecular weight: 126.11

Item	Standard		Test Results
Identification	A.H-NMR:Comply with the structure		Complies
	B.LC-MS:Comply with the structure		Complies
	C.The IR spectrum of sample should be identical with that of reference standard;		Complies
	D.HPLC-ESI-MS The retention time of the major peak in the chromatogram of the Assay preparation corresponds to that in the chromatogram of the Standard preparation, as obtained in the Assay.		Complies
Loss on drying	≤0.5%		0.11%
Heavy metals	≤10 ppm		<10ppm
Sulphated ash	≤0.2%, determined on 1.0 g.		0.009%
Related substances	Unspecified impurities: for each impurity	≤0.10%	<0.10%
	Total Impurity	≤1.0%	0.18%
Purity	≥99.0%		99.82%
Assay	99.0%~101.0% (anhydrous substance).		99.9%