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8,9-dihydroxy-2-methyl-5H-pyrano[3,2-c]chromen-4-one

8,9-dihydroxy-2-methyl-5H-pyrano[3,2-c]chromen-4-one


  • 中文别名:8,9-dihydroxy-2-methyl-5H-pyrano[3,2-c]chromen-4-one
  • 中文释义:8,9-dihydroxy-2-methyl-5H-pyrano[3,2-c]chromen-4-one
  • 英文别名:8,9-dihydroxy-2-methyl-5H-pyrano[3,2-c]chromen-4-one;
    Citromycin;
    8,9-Dihydroxy-2-methyl-5H-pyrano[3,2-c]chromen-4-on;
    4H,5H-Pyrano(3,2-c)(1)benzopyran-4-one,8,9-dihydroxy-2-methyl 
  • CAS No.:37209-30-6
  • 分子式:C13H10O5
  • 分子量:246.21500
  • 精确分子量:246.05300
  • PSA:79.90000
  • InChI:The Key: QZZUHPUWIRSQPB-UHFFFAOYSA-N
  • 分子结构式:

物化性质

密度:
1.56g/cm3
沸点:
591.1ºC at 760 mmHg
闪点:
236.7ºC
折射率:
1.703

安全信息

密度:
1.56g/cm3
沸点:
591.1ºC at 760 mmHg
闪点:
236.7ºC
折射率:
1.703

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%

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