btda

Date：2021-12-14 Categories：Related Application Product

post date:

dec 14,2021

expiry date:

jun 12,2022

detailed description:

cas no. :2421-28-5

purity: 98%min. / 99.5%min.
appearance: light yellow powder / white powder
packing size: 1kg/bag；20kg/drum ; 115kg/drum
application: polyimide foam, epoxy resin material, etc.

for details, please contact the sales manager:
mr.ye 18222275652; ms. cao 18222265956; sales department: 022-83726202-8855

cas registry number:	2421-28-5
synonyms:	;btda;4,4-carbonyldiphthalic anhydride;benzophenone-3,3:4,4-tetracarboxylic dianhydride;btda;3,3,4,4-benzophenontetracarbonsaeuredianhydride;1,3-isobenzofurandione, 5,5′-carbonylbis-;3,3′,4,4′-benzophenonetetracarboxylic acid dianhydride;3,3′,4,4′-tetracarboxybenzophenone dianhydride;3,3′,4,4′-benzophenonetetracarboxylicaciddianhydride;3-isobenzofurandione,5,5′-carbonylbis-1;4,4′-carbonylbis[phthalic anhydride];4,4′-diphthalic anhydride ketone;5,5′-carbonylbis-3-isobenzofurandione;5,5′-carbonylbis(2-benzofuran-1,3-dione);3,3′,4,4′-benzophenone tetracarboxylic dianhydride;benzophenone-3,3′,4,4′-tetracarboxylic dianhydride;3,3,4,4-benzophenonetetracarboxylic dianhydride;
molecular formula:	c₁₇h₆o₇
molecular weight:	322.2253
molecular structure:
hazard symbols:	xi:irritant;
risk codes:	r36/37:;
safety description:	s25:;

Tags：BTDA

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