品牌现货直购
供应商:我要出现这里


查看所有供应商和价格请点击:

16691-79-5生产厂家

16691-79-5价格

16691-79-5

16691-79-5结构式
16691-79-5结构式

化源商城直购

中文名 2,5-双甲氧酰基-3,4-二苯基环戊二烯酮
英文名 dimethyl 2-oxo-4,5-diphenylcyclopenta-3,5-diene-1,3-dicarboxylate
中文别名 2,5-双(甲氧酰基)-3,4-二苯基环戊二烯酮
2,5-二(甲氧羰基)-3,4-二苯基环戊二酮
3,4-二苯基环戊二烯酮-2,5-二羧酸二甲酯
英文别名 3,4-Diphenylcyclopentadienone-2,5-dicarboxylic Acid Dimethyl Ester
2,4-DICHLORO-5-HYDROXYANILINE
2-oxo-4,5-diphenyl-cyclopenta-3,5-diene-1,3-dicarboxylic acid dimethyl ester
2,5-Bis(methoxycarbonyl)-3,4-diphenylcyclopentadienone
2,5-bis(methoxycarbonyl)-3,4-diphenylcyclopentadienone
2,5-dimethoxycarbonyl-3,4-diphenylcyclopentadienone
2,5-dicarbomethoxy-3,4-diphenylcyclopentadienone
密度 1.302g/cm3
沸点 445.4ºC at 760 mmHg
分子式 C21H16O5
分子量 348.34900
闪点 194.3ºC
精确质量 348.10000
PSA 69.67000
LogP 2.82270
蒸汽压 3.96E-08mmHg at 25°C
折射率 1.613
储存条件 室温,干燥
分子结构

1、 摩尔折射率:93.16

2、 摩尔体积(m3/mol):267.3

3、 等张比容(90.2K):725.0

4、 表面张力(dyne/cm):54.0

5、 极化率(10-24cm3):36.93

计算化学

1.疏水参数计算参考值(XlogP):3.3

2.氢键供体数量:0

3.氢键受体数量:5

4.可旋转化学键数量:6

5.互变异构体数量:无

6.拓扑分子极性表面积69.7

7.重原子数量:26

8.表面电荷:0

9.复杂度:602

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:未确定

2.密度(g/mL,25/4℃):未确定

3.相对蒸汽密度(g/mL,空气=1):未确定

4.熔点(ºC):未确定

5.沸点(ºC,常压):未确定

6.沸点(ºC,5.2kPa):未确定

7.折射率:未确定

8.闪点(ºC):未确定

9.比旋光度(º):未确定

10.自燃点或引燃温度(ºC):未确定

11.蒸气压(kPa,25ºC):未确定

12.饱和蒸气压(kPa,60ºC):未确定

13.燃烧热(KJ/mol):未确定

14.临界温度(ºC):未确定

15.临界压力(KPa):未确定

16.油水(辛醇/水)分配系数的对数值:未确定

17.爆炸上限(%,V/V):未确定

18.爆炸下限(%,V/V):未确定

19.溶解性:未确定

2,5-Bis(methoxycarbonyl)-3,4-
diphenylcyclopentadienone
SAFETY DATA SHEET

Section1. IDENTIFICATION OF THE SUBSTANCE OR MIXTURE AND OF THE SUPPLIER
Product name:2,5-Bis(methoxycarbonyl)-3,4-diphenylcyclopentadienone

Section2. HAZARDS IDENTIFICATION
Classification of the GHS
Not classified
PHYSICAL HAZARDS
HEALTH HAZARDSNot classified
Not classified
ENVIRONMENTAL HAZARDS
GHS label elements
None
Pictograms or hazard symbols
Signal wordNo signal word
Hazard statementNone
Precautionary statementsNone

Section3. COMPOSITION/INFORMATION ON INGREDIENTS
Substance/mixture:Substance
2,5-Bis(methoxycarbonyl)-3,4-diphenylcyclopentadienone
Component(s):
Percent:....
16691-79-5
CAS Number:
Synonyms:Dimethyl 3,4-Diphenylcyclopentadienone-2,5-dicarboxylate , 3,4-
Diphenylcyclopentadienone-2,5-dicarboxylic Acid Dimethyl Ester
Chemical Formula:C21H16O5

Section4. FIRST AID MEASURES
Inhalation:Remove victim to fresh air and keep at rest in a position comfortable for breathing.
Get medical advice/attention if you feel unwell.
Skin contact:Remove/Take off immediately all contaminated clothing. Rinse skin with
water/shower. If skin irritation or rash occurs: Get medical advice/attention.
Eye contact:Rinse cautiously with water for several minutes. Remove contact lenses, if present
and easy to do. Continue rinsing. If eye irritation persists: Get medical
advice/attention.
Get medical advice/attention if you feel unwell. Rinse mouth.
Ingestion:
Protection of first-aiders:A rescuer should wear personal protective equipment, such as rubber gloves and air-
tight goggles.

Section5. FIRE-FIGHTING MEASURES
Dry chemical, foam, water spray, carbon dioxide.
Suitable extinguishing
media:
2,5-Bis(methoxycarbonyl)-3,4-
diphenylcyclopentadienone

Section5. FIRE-FIGHTING MEASURES
Specific methods:Fire-extinguishing work is done from the windward and the suitable fire-extinguishing
method according to the surrounding situation is used. Uninvolved persons should
evacuate to a safe place. In case of fire in the surroundings: Remove movable
containers if safe to do so.
Special protectiveWhen extinguishing fire, be sure to wear personal protective equipment.
equipment for firefighters:

Section6. ACCIDENTAL RELEASE MEASURES
Use personal protective equipment. Keep people away from and upwind of spill/leak.
Personal precautions,
protective equipment and Entry to non-involved personnel should be controlled around the leakage area by
emergency procedures: roping off, etc.
Environmental precautions: Prevent product from entering drains.
Methods and materials for Sweep dust to collect it into an airtight container, taking care not to disperse it.
containment and cleaning Adhered or collected material should be promptly disposed of, in accordance with
up: appropriate laws and regulations.

Section7. HANDLING AND STORAGE
Handling
Handling is performed in a well ventilated place. Wear suitable protective equipment.
Technical measures:
Prevent dispersion of dust. Wash hands and face thoroughly after handling.
Use a local exhaust if dust or aerosol will be generated.
Advice on safe handling:Avoid contact with skin, eyes and clothing.
Storage
Storage conditions:Keep container tightly closed. Store in a cool and dark place.
Store away from incompatible materials such as oxidizing agents.
Packaging material:Law is followed.

Section8. EXPOSURE CONTROLS / PERSONAL PROTECTION
Engineering controls:Install a closed system or local exhaust as possible so that workers should not be
exposed directly. Also install safety shower and eye bath.
Personal protective equipment
Respiratory protection: Dust respirator. Follow local and national regulations.
Hand protection:Protective gloves.
Eye protection:Safety glasses. A face-shield, if the situation requires.
Skin and body protection: Protective clothing. Protective boots, if the situation requires.

Section9. PHYSICAL AND CHEMICAL PROPERTIES
Solid
Physical state (20°C):
Form:crystal - powder
Color:Yellow - Yellow red
Odor:No data available
pH: No data available
Melting point/freezing point:No data available
Boiling Point/Range:No data available
Flash Point:No data available
Explosive limits
Lower:No data available
Upper:No data available
Density:No data available
Solubility:No data available

Section10. STABILITY AND REACTIVITY
Stable under proper conditions.
Stability:
Reactivity:No special reactivity has been reported.
Incompartible materials: oxidizing agents
2,5-Bis(methoxycarbonyl)-3,4-
diphenylcyclopentadienone

Section10. STABILITY AND REACTIVITY
Hazardous Decomposition Carbon monoxide, Carbon dioxide
Products:

Section11. TOXICOLOGICAL INFORMATION
Acute Toxicity:No data available
Skin corrosion/irritation: No data available
No data available
Serious eye
damage/irritation:
Germ cell mutagenicity: No data available
Carcinogenicity:
IARC =No data available
NTP =No data available
Reproductive toxicity:No data available

Section12. ECOLOGICAL INFORMATION
Ecotoxicity:
No data available
Fish:
Crustacea:No data available
No data available
Algae:
Persistence / degradability: No data available
BioaccumulativeNo data available
potential(BCF):
Mobillity in soil
log Pow:No data available
No data available
Soil adsorption (Koc):
Henry's LawNo data available
constant(PaM3/mol):

Section13. DISPOSAL CONSIDERATIONS
Recycle to process, if possible. Consult your local regional authorities. You may be able to dissolve or mix material
with a combustible solvent and burn in a chemical incinerator equipped with an afterburner and scrubber system.
Observe all federal, state and local regulations when disposing of the substance.

Section14. TRANSPORT INFORMATION
Hazards Class:Does not correspond to the classification standard of the United Nations
Not Listed
UN-No:

Section15. REGULATORY INFORMATION
Safe management ordinance of dangerous chemical product (State Council announces on January 26,
2002): Safe use and production, the storage of a dangerous chemical, transport, loading and unloading were
prescribed.
2,5-Bis(methoxycarbonyl)-3,4-
diphenylcyclopentadienone


SECTION 16 - ADDITIONAL INFORMATION
N/A
海关编码 2918300090
上游产品  2

下游产品  1

海关编码 2918300090
中文概述 2918300090 其他含醛基或酮基不含其他含氧基羧酸(包括酸酐、酰卤化物、过氧化物和过氧酸及该税号的衍生物). 增值税率:17.0% 退税率:9.0% 监管条件:无 最惠国关税:6.5% 普通关税:30.0%
申报要素 品名, 成分含量, 用途
Summary 2918300090 other carboxylic acids with aldehyde or ketone function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:6.5%。General tariff:30.0%