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125-20-2生产厂家

125-20-2价格

125-20-2

125-20-2结构式
125-20-2结构式

化源商城直购

中文名 百里酚酞
英文名 Thymolphthalein
中文别名 麝香草酚麸
5',5''-二异丙基-2',2''-二甲基酚酞
麝香草酚酞
百里香酚酞
英文别名 Thymolphthalein
MFCD00005909
3,3-Bis[4-hydroxy-2-methyl-5-(1-methylethyl)phenyl]-1(3H)-isobenzofuranone
3,3-Bis(4-hydroxy-5-isopropyl-2-methylphenyl)-2-benzofuran-1(3H)-one
TCMDC-123951
1(3H)-Isobenzofuranone, 3,3-bis[4-hydroxy-2-methyl-5-(1-methylethyl)phenyl]-
3,3-bis(4-hydroxy-2-methyl-5-propan-2-ylphenyl)-2-benzofuran-1-one
EINECS 204-729-7
5',5''-Diisopropyl-2',2''-dimethylphenolphthalein
密度 1.2±0.1 g/cm3
沸点 571.6±50.0 °C at 760 mmHg
熔点 251-253 °C(lit.)
分子式 C28H30O4
分子量 430.535
闪点 187.5±23.6 °C
精确质量 430.214417
PSA 66.76000
LogP 6.23
外观性状 白色结晶粉末
蒸汽压 0.0±1.6 mmHg at 25°C
折射率 1.613
储存条件

贮存:密封保存。

稳定性

基本性质:遇酸碱变色

水溶解性 insoluble
分子结构

1、 摩尔折射率:126.12

2、 摩尔体积(cm3/mol):362.4

3、 等张比容(90.2K):961.6

4、 表面张力(dyne/cm):49.5

5、 极化率(10-24cm3):50.00

计算化学

1.疏水参数计算参考值(XlogP):6.8

2.氢键供体数量:2

3.氢键受体数量:4

4.可旋转化学键数量:4

5.互变异构体数量:45

6.拓扑分子极性表面积66.8

7.重原子数量:32

8.表面电荷:0

9.复杂度:636

10.同位素原子数量:0

11.确定原子立构中心数量:0

12.不确定原子立构中心数量:0

13.确定化学键立构中心数量:0

14.不确定化学键立构中心数量:0

15.共价键单元数量:1

更多

1.性状:无色针状结晶或白色至淡黄色结晶性粉末。

2.熔点:251-252℃(分解)

3.溶解性:溶于乙醇、丙酮,溶于稀碱呈蓝色,溶于硫酸呈胭脂红色,不溶于水。

Name: Thymolphthalein indicator Material Safety Data Sheet
Synonym: Non
CAS: 125-20-2
Section 1 - Chemical Product MSDS Name:Thymolphthalein indicator Material Safety Data Sheet
Synonym:Non

Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS
CAS# Chemical Name content EINECS#
125-20-2 Thymolphthalein 100.0 204-729-7
Hazard Symbols: None Listed.
Risk Phrases: None Listed.

Section 3 - HAZARDS IDENTIFICATION
EMERGENCY OVERVIEW
The toxicological properties of this material have not been fully investigated.
Potential Health Effects
Eye:
Dust may cause mechanical irritation.
Skin:
May cause skin irritation.
Ingestion:
The toxicological properties of this substance have not been fully investigated.
Inhalation:
Inhalation of dust may cause respiratory tract irritation.
Chronic:
No information found.

Section 4 - FIRST AID MEASURES
Eyes: Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.
Skin:
Flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes. Get medical aid if irritation develops or persists.
Ingestion:
If victim is conscious and alert, give 2-4 cupfuls of milk or water.
Never give anything by mouth to an unconscious person. Get medical aid immediately.
Inhalation:
Remove from exposure and move to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid if cough or other symptoms appear.
Notes to Physician:

Section 5 - FIRE FIGHTING MEASURES
General Information:
As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Dusts at sufficient concentrations can form explosive mixtures with air. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion.
Extinguishing Media:
For small fires, use dry chemical, carbon dioxide, water spray or alcohol-resistant foam.

Section 6 - ACCIDENTAL RELEASE MEASURES
General Information: Use proper personal protective equipment as indicated in Section 8.
Spills/Leaks:
Clean up spills immediately, observing precautions in the Protective Equipment section. Sweep up, then place into a suitable container for disposal. Avoid generating dusty conditions. Provide ventilation.

Section 7 - HANDLING and STORAGE
Handling:
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Avoid ingestion and inhalation. Use with adequate ventilation.
Storage:
Keep container closed when not in use. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.

Section 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION
Engineering Controls:
Use adequate ventilation to keep airborne concentrations low.
Exposure Limits CAS# 125-20-2: Personal Protective Equipment Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166.
Skin:
Wear appropriate protective gloves to prevent skin exposure.
Clothing:
Wear appropriate protective clothing to prevent skin exposure.
Respirators:
Follow the OSHA respirator regulations found in 29 CFR 1910.134 or European Standard EN 149. Use a NIOSH/MSHA or European Standard EN 149 approved respirator if exposure limits are exceeded or if irritation or other symptoms are experienced.

Section 9 - PHYSICAL AND CHEMICAL PROPERTIES

Physical State: Solid
Color: white
Odor: Not available.
pH: Not available.
Vapor Pressure: Not available.
Viscosity: Not available.
Boiling Point: Not available.
Freezing/Melting Point: 250 deg C
Autoignition Temperature: Not available.
Flash Point: Not available.
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature:
Solubility in water: Insoluble in water.
Specific Gravity/Density:
Molecular Formula: C28H30O4
Molecular Weight: 430.2076

Section 10 - STABILITY AND REACTIVITY
Chemical Stability:
Stable.
Conditions to Avoid:
Incompatible materials, dust generation, strong oxidants.
Incompatibilities with Other Materials:
Strong oxidizers.
Hazardous Decomposition Products:
Carbon monoxide, carbon dioxide.
Hazardous Polymerization: Has not been reported.

Section 11 - TOXICOLOGICAL INFORMATION
RTECS#:
CAS# 125-20-2 unlisted.
LD50/LC50:
Not available.
Carcinogenicity:
Thymolphthalein - Not listed by ACGIH, IARC, or NTP.

Section 12 - ECOLOGICAL INFORMATION
Ecotoxicity:
No data

Section 13 - DISPOSAL CONSIDERATIONS
Dispose of in a manner consistent with federal, state, and local regulations.

Section 14 - TRANSPORT INFORMATION

IATA
Not regulated as a hazardous material.
IMO
Not regulated as a hazardous material.
RID/ADR
Not regulated as a hazardous material.

Section 15 - REGULATORY INFORMATION

European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: Not available.
Risk Phrases:
Safety Phrases:
S 24/25 Avoid contact with skin and eyes.
WGK (Water Danger/Protection)
CAS# 125-20-2: 2
Canada
CAS# 125-20-2 is listed on Canada's DSL List.
CAS# 125-20-2 is not listed on Canada's Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 125-20-2 is listed on the TSCA inventory.


SECTION 16 - ADDITIONAL INFORMATION
N/A
个人防护装备 Eyeshields;Gloves;type N95 (US);type P1 (EN143) respirator filter
危害码 (欧洲) Xn:Harmful
风险声明 (欧洲) R40
安全声明 (欧洲) S7-S16-S36/37-S24/25-S22
危险品运输编码 UN 1170 3/PG 3
WGK德国 3
包装等级 II
危险类别 3
海关编码 29322980

~90%

125-20-2结构式

125-20-2

文献:Sabnis, Ram W. Tetrahedron Letters, 2009 , vol. 50, # 46 p. 6261 - 6263
上游产品  2

下游产品  0

1.将麝香草酚、邻苯二甲酸酐和无水氯化锌混合,加热。加入乙醚及苯。在水浴上加热回流,倾出上层溶剂,向固体物中加入甲醇,加热。用甲醇抽提剩余的固体物,滴加水出现沉淀、冷却,便得纯品麝香草酚酞。

2.将百里酚、邻苯二甲酸酐和无水氯化锌混合,搅拌下加热至105~110℃,保温6~8h进行反应:

125-20-2 preparation

反应结束后,先冷却,然后加入少量乙醚和苯,水浴加热回流,使未反应的百里酚完全溶解。冷却结晶,分出上层溶剂,在结晶中加入甲醇,抽提产物,收集提取液,往提取液中滴加水至沉淀析出即停止,冷却结晶,即为百里香酚酞。根据纯品要求,可再用热甲醇重复抽提、滴水析出过程。

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%