5H,11H-[2]Benzopyrano[4,3-g][1]benzopyran-9-carboxylicacid, 5,5-dimethyl-11-oxo- (9CI)
- 中文别名:5,5-二甲基-11-氧代-5H,11H-[2]苯并吡喃并[4,3-g][1]苯并吡喃-9-羧酸
- 中文释义:5,5-dimethyl-11-oxoisochromeno[4,3-g]chromene-9-carboxylic acid
- 英文别名:5,5-dimethyl-11-oxoisochromeno[4,3-g]chromene-9-carboxylic acid;
Prd-92 Ea
- CAS No.:52156-73-7
- 分子式:C19H14O5
- 分子量:0
- 精确分子量:322.08400
- PSA:76.74000
- InChI:The Key: AYXKVDRDWWQQTD-UHFFFAOYSA-N
- 分子结构式:
物化性质
- 密度:
- 1.38g/cm3
- 沸点:
- 524.7ºC at 760mmHg
- 闪点:
- 194ºC
- 折射率:
- 1.642
安全信息
- 密度:
- 1.38g/cm3
- 沸点:
- 524.7ºC at 760mmHg
- 闪点:
- 194ºC
- 折射率:
- 1.642
海关数据
中国海关编码:2932999099
- 概述:
- 2932999099. 其他仅含氧杂原子的杂环化合物. 增值税率:17.0%. 退税率:13.0%. 监管条件:无. 最惠国关税:6.5%. 普通关税:20.0%
- 申报要素:
- 品名, 成分含量, 用途
- 摘要/Summary:
- 2932999099. other heterocyclic compounds with oxygen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%