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491-64-5生产厂家

491-64-5价格

491-64-5

491-64-5结构式
491-64-5结构式

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中文名 1,3-二羟基-7-甲氧基-9H-氧杂蒽-9-酮
英文名 isogentisin
英文别名 1,3-dihydroxy-7-methoxyxanthen-9-one
Xanthen-9-one,1,3-dihydroxy-7-methoxy
1,3-Dihydroxy-7-methoxyxanthon,Isogentisin
1,3-dihydroxy-7-methoxy-xanthen-9-one
1,3-dihydroxy-7-methoxyxanthone
Isogentisin
1,3-Dihydroxy-7-methoxy-9H-xanthen-9-one
1,3-Dihydroxy-7-methoxyxanthon
1,3-Dihydroxy-7-methoxy-xanthen-9-on
密度 1.48g/cm3
沸点 519.4ºC at 760 mmHg
熔点 241 °C
分子式 C14H10O5
分子量 258.22600
闪点 205ºC
精确质量 258.05300
PSA 79.90000
LogP 2.36600
外观性状 固体
蒸汽压 2.09E-11mmHg at 25°C
折射率 1.68
储存条件 室温, 密封, 干燥

CHEMICAL IDENTIFICATION

RTECS NUMBER :
ZD6034500
CHEMICAL NAME :
Xanthen-9-one, 1,3-dihydroxy-7-methoxy-
CAS REGISTRY NUMBER :
491-64-5
BEILSTEIN REFERENCE NO. :
0258402
LAST UPDATED :
199612
DATA ITEMS CITED :
1
MOLECULAR FORMULA :
C14-H10-O5
MOLECULAR WEIGHT :
258.24

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

MUTATION DATA

TYPE OF TEST :
Mutation in microorganisms
TEST SYSTEM :
Bacteria - Salmonella typhimurium
DOSE/DURATION :
5 ug/plate
REFERENCE :
MUREAV Mutation Research. (Elsevier Science Pub. B.V., POB 211, 1000 AE Amsterdam, Netherlands) V.1- 1964- Volume(issue)/page/year: 116,103,1983

危害码 (欧洲) Xn
海关编码 2932999099

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491-64-5结构式

491-64-5

文献:Grover et al. Journal of the Chemical Society, 1955 , p. 3982,3984
海关编码 2932999099
中文概述 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
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%