1955-45-9

• 常用中文名：Pivalolactone.
• 常用英文名：Pivalolactone.
• CAS号：1955-45-9
• 分子式：C₅H₈O₂
• 分子量：100.11600
• 发布时间：2017-08-25 11:37:29
• 更新时间：2025-08-25 11:40:08

名称

• 英文名: Pivalolactone.
• 英文别名: 3,3-dimethylpropiolactone; Dimethyl propiolactone; 3,3-dimethyl-oxetan-2-one; PPIVALOLACTONE; 3,3-DIMETHYL-2-OXETANONE; 2,2-Dimethyl-3-hydroxypropanoic acid lactone; Pivalolactone

物化性质

• 密度: 1.032g/cm3
• 沸点: 131.6ºC at 760 mmHg
• 分子式: C₅H₈O₂
• 分子量: 100.11600
• 闪点: 33.7ºC
• 精确质量: 100.05200
• PSA: 26.30000
• LogP: 0.56940
• 蒸汽压: 9.21mmHg at 25°C
• 折射率: 1.427

毒性和生态

CHEMICAL IDENTIFICATION RTECS NUMBER : RQ7525000 CHEMICAL NAME : 2-Oxetanone, 3,3-dimethyl- CAS REGISTRY NUMBER : 1955-45-9 BEILSTEIN REFERENCE NO. : 1280648 LAST UPDATED : 199710 DATA ITEMS CITED : 12 MOLECULAR FORMULA : C5-H8-O2 MOLECULAR WEIGHT : 100.13 WISWESSER LINE NOTATION : T4OVTJ C1 C1 HEALTH HAZARD DATA ACUTE TOXICITY DATA TYPE OF TEST : LD50 - Lethal dose, 50 percent kill ROUTE OF EXPOSURE : Oral SPECIES OBSERVED : Rodent - rat DOSE/DURATION : 1470 mg/kg TOXIC EFFECTS : Details of toxic effects not reported other than lethal dose value TYPE OF TEST : LD50 - Lethal dose, 50 percent kill ROUTE OF EXPOSURE : Oral SPECIES OBSERVED : Rodent - mouse DOSE/DURATION : 316 mg/kg TOXIC EFFECTS : Details of toxic effects not reported other than lethal dose value TYPE OF TEST : TDLo - Lowest published toxic dose ROUTE OF EXPOSURE : Oral SPECIES OBSERVED : Rodent - rat DOSE/DURATION : 216 gm/kg/2Y-I TOXIC EFFECTS : Tumorigenic - Carcinogenic by RTECS criteria Gastrointestinal - tumors TYPE OF TEST : TD - Toxic dose (other than lowest) ROUTE OF EXPOSURE : Oral SPECIES OBSERVED : Rodent - rat DOSE/DURATION : 72 gm/kg/69W TOXIC EFFECTS : Tumorigenic - equivocal tumorigenic agent by RTECS criteria Gastrointestinal - tumors MUTATION DATA TYPE OF TEST : Mutation in microorganisms TEST SYSTEM : Bacteria - Serratia marcescens DOSE/DURATION : 25 mg/L REFERENCE : ATXKA8 Archiv fuer Toxikologie. (Berlin, Fed. Rep. Ger.) V.15-31, 1954-74. For publisher information, see ARTODN. Volume(issue)/page/year: 30,67,1972

安全

• 海关编码: 2932209090

合成路线

558-30-5 201230-82-2 ~7% 1823-52-5 1955-45-9

文献：Mahadevan, Viswanath; Getzler, Yutan D. Y. L.; Coates, Geoffrey W. Angewandte Chemie - International Edition, 2002 , vol. 41, # 15 p. 2781 - 2784

78-84-2 ~58% 1955-45-9

文献：Eastman Kodak Company Patent: US4017537 A1, 1977 ;

13511-38-1 ~% 1955-45-9

文献：Teijin Ltd. Patent: US3950361 A1, 1976 ;

201230-82-2 81112-28-9 ~14% 1955-45-9

文献：Woo, Edmund P.; Cheng, Frank C.W. Journal of Organic Chemistry, 1986 , vol. 51, # 19 p. 3704 - 3706

上下游产品

上游产品  5
558-30-5 201230-82-2 78-84-2 13511-38-1
81112-28-9
下游产品  8
595-37-9 21153-31-1 75-98-9 3302-12-3
16386-93-9 2843-17-6 5669-14-7 58203-68-2

海关

海关编码	2932209090
中文概述	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
Summary	2932209090. other lactones. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%