2-Oxetanone,3,3-dimethyl-4-(1-methylethylidene)-
- 中文别名：二甲基乙烯酮-β-内酯二聚体
- 中文释义：3,3-dimethyl-4-propan-2-ylideneoxetan-2-one
- 英文别名：3,3-dimethyl-4-propan-2-ylideneoxetan-2-one;
4-isopropylidene-3,3-dimethyloxetan-2-one;
2-Oxetanone,4-isopropylidene-3,3-dimethyl;
EINECS 221-643-5;
4-Isopropylidene-3,3-dimethyl-2-oxetanone;
Dimethylketene dimer
- CAS No.：3173-79-3
- 分子式：
C8H12O2
- 分子量：140.18
- 精确分子量：140.08400
- PSA：26.30000
- InChI：The Key: OKAAPXFKYOTAEN-UHFFFAOYSA-N
- 分子结构式：
毒理性
CHEMICAL IDENTIFICATION
- RTECS NUMBER :
- RQ7875000
- CHEMICAL NAME :
- 2-Oxetanone, 4-isopropylidene-3,3-dimethyl-
- CAS REGISTRY NUMBER :
- 3173-79-3
- LAST UPDATED :
- 199712
- DATA ITEMS CITED :
- 1
- MOLECULAR FORMULA :
- C8-H12-O2
- MOLECULAR WEIGHT :
- 140.20
- WISWESSER LINE NOTATION :
- T4VOY DHJ CUY1&1 D1 D1
HEALTH HAZARD DATA
ACUTE TOXICITY DATA
- TYPE OF TEST :
- TDLo - Lowest published toxic dose
- ROUTE OF EXPOSURE :
- Subcutaneous
- SPECIES OBSERVED :
- Rodent - rat
- DOSE/DURATION :
- 39 gm/kg/78W-I
- TOXIC EFFECTS :
- Tumorigenic - equivocal tumorigenic agent by RTECS criteria Tumorigenic - tumors at site of application
- REFERENCE :
- JNCIAM Journal of the National Cancer Institute. (Washington, DC) V.1-60, 1940-78. For publisher information, see JJIND8. Volume(issue)/page/year: 39,1213,1967
海关数据
中国海关编码：2932209090
- 概述：
- 2932209090. 其他内酯. 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：
- 2932209090. other lactones. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%
