2,6-dimethyl-4-oxopyran-3-carboxylic acid

名称

[ CAS 号 ]:
3265-58-5

[ 英文名 ]:
2,6-dimethyl-4-oxopyran-3-carboxylic acid

[英文别名 ]:

4-Keto-2,6-dimethyl-4H-pyran-3-carbonsaeure
2,6-Dimethyl-4-oxo-4H-pyran-3-carbonsaeure
2,6-Dimethyl-4-pyrone-3-carboxylic acid
1,4-dihydro-2,6-dimethyl-3-oxopyrancarboxylic acid
4H-Pyran-3-carboxylic acid,2,6-dimethyl-4-oxo
2,6-dimethyl-4-oxo-4H-pyran-3-carboxylic acid

物理化学性质

[ 密度 ]:
1.326g/cm3

[ 沸点 ]:
341.1ºC at 760 mmHg

[ 分子式 ]:
C₈H₈O₄

[ 分子量 ]:
168.14700

[ 闪点 ]:
143.7ºC

[ 精确质量 ]:
168.04200

[ PSA ]:
67.51000

[ LogP ]:
0.95480

[ 折射率 ]:
1.535

毒性和生态

CHEMICAL IDENTIFICATION

RTECS NUMBER :: UP7035000

CHEMICAL NAME :: 4H-Pyran-3-carboxylic acid, 2,6-dimethyl-4-oxo-

CAS REGISTRY NUMBER :: 3265-58-5

BEILSTEIN REFERENCE NO. :: 0133033

LAST UPDATED :: 199612

DATA ITEMS CITED :: 1

MOLECULAR FORMULA :: C8-H8-O4

MOLECULAR WEIGHT :: 168.16

WISWESSER LINE NOTATION :: T6O DVJ B1 CVQ F1

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 2330 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: SKEZAP Shokuhin Eiseigaku Zasshi. Food Hygiene Journal. (Nippon Shokuhin Eisei Gakkai c/o Shokuhin Eisei Senta, 2-6-1 Jingumae, Shibuya-ku, Tokyo 150, Japan) V.1- 1960- Volume(issue)/page/year: 12,520,1971

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安全信息

[ 海关编码 ]:
2932999099

合成路线

详细合成路线

海关

[ 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%