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644-06-4生产厂家

644-06-4价格

相关CAS号：
644-06-4 17598-02-6
65383-73-5 60748-45-0
121-20-0 1172-63-0
50-59-9 1173-88-2
480-10-4 161842-81-5

644-06-4

644-06-4结构式
644-06-4结构式

化源商城直购

中文名 早熟素Ⅱ
英文名 precocene II
中文别名 6,7-二甲氧基-2,2-二甲基-3-色烯
早熟素 II
6,7-二甲氧基-2,2-二甲基-2H-1-苯并吡喃
英文别名 2H-1-BENZOPYRAN,6,7-DIMETHOXY-2,2-DIMETHYL
6,7-dimethoxy-2,2-dimethyl-3-chromene
EINECS 211-408-5
6,7-Dimethoxy-2,2-dimethyl-2H-1-benzopyran
precocenes II
2H-1-Benzopyran, 6,7-dimethoxy-2,2-dimethyl-
6,7-Dimethoxy-2,2-dimethyl2H-1-benzopyran
6,7-Dimethoxy-2,2-dimethyl-2H-benzopyran
6,7-Dimethoxy-2,2-dimethylchromene
6,7-Dimethoxy-2,2-dimethyl-2H-chromene
PRICOCENE II
Ageratochromene
Precocen 2
6,7-dimethoxy-2,2-dimethylchrom-3-ene
Precocene 2
密度 1.1±0.1 g/cm3
沸点 300.4±42.0 °C at 760 mmHg
熔点 47.5ºC
分子式 C13H16O3
分子量 220.26
闪点 100.0±25.2 °C
精确质量 220.109940
PSA 27.69000
LogP 3.38
外观性状 油状物体
蒸汽压 0.0±0.6 mmHg at 25°C
折射率 1.514
储存条件

密封储存，储存于阴凉、干燥的库房。

稳定性

常温常压下稳定，避免与强氧化剂接触。

计算化学

1.疏水参数计算参考值（XlogP）:无

2.氢键供体数量:0

3.氢键受体数量:3

4.可旋转化学键数量:2

5.互变异构体数量:无

6.拓扑分子极性表面积27.7

7.重原子数量:16

8.表面电荷:0

9.复杂度:272

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：粉末

2. 密度（g/mL,25℃）：未确定

3. 相对蒸汽密度（g/mL,空气=1）：未确定

4. 熔点（ºC）：47.5

5. 沸点（ºC,常压）：未确定

6. 沸点（ºC，2mmHg）：未确定

7. 折射率(n20/D)：未确定

8. 闪点（ºC）：113

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（mmHg,20ºC）：未确定

12. 饱和蒸气压（kPa,25ºC）：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

Name: Precocene II 99% Material Safety Data Sheet
Synonym: 6,7-Dimethoxy-2,2-Dimethyl-3-Chromene; Ageratochromene
CAS: 644-06-4
Section 1 - Chemical Product MSDS Name:Precocene II 99% Material Safety Data Sheet
Synonym:6,7-Dimethoxy-2,2-Dimethyl-3-Chromene; Ageratochromene
Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS
CAS# Chemical Name content EINECS#
644-06-4 Precocene II 99% 211-408-5
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:
May cause eye irritation.
Skin:
May cause skin irritation.
Ingestion:
May cause irritation of the digestive tract. The toxicological properties of this substance have not been fully investigated.
Inhalation:
May cause respiratory tract irritation. The toxicological properties of this substance have not been fully investigated.
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.
Skin:
Get medical aid. Flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse.
Ingestion:
Never give anything by mouth to an unconscious person. Get medical aid. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water.
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.
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. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Runoff from fire control or dilution water may cause pollution.
Extinguishing Media:
Use agent most appropriate to extinguish fire. Use water spray, dry chemical, carbon dioxide, or appropriate foam.
Section 6 - ACCIDENTAL RELEASE MEASURES
General Information: Use proper personal protective equipment as indicated in Section 8.
Spills/Leaks:
Vacuum or sweep up material and place into a suitable disposal container. Clean up spills immediately, observing precautions in the Protective Equipment section. Avoid generating dusty conditions.
Provide ventilation.
Section 7 - HANDLING and STORAGE
Handling:
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use with adequate ventilation. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation.
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:
Facilities storing or utilizing this material should be equipped with an eyewash facility and a safety shower. Use adequate ventilation to keep airborne concentrations low.
Exposure Limits CAS# 644-06-4: 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 minimize contact with skin.
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: Crystals
Color: slightly yellow
Odor: Not available.
pH: Not available.
Vapor Pressure: Not available.
Viscosity: Not available.
Boiling Point: Not available.
Freezing/Melting Point: 46.00 - 47.00 deg C
Autoignition Temperature: Not applicable.
Flash Point: Not applicable.
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature:
Solubility in water:
Specific Gravity/Density:
Molecular Formula: C13H16O3
Molecular Weight: 220.27
Section 10 - STABILITY AND REACTIVITY
Chemical Stability:
Stable under normal temperatures and pressures.
Conditions to Avoid:
Incompatible materials, dust generation, excess heat, strong oxidants.
Incompatibilities with Other Materials:
Oxidizing agents.
Hazardous Decomposition Products:
Carbon monoxide, irritating and toxic fumes and gases, carbon dioxide.
Hazardous Polymerization: Has not been reported
Section 11 - TOXICOLOGICAL INFORMATION
RTECS#:
CAS# 644-06-4: DJ2527000 LD50/LC50:
Not available.
Carcinogenicity:
Precocene II - Not listed by ACGIH, IARC, or NTP.
Other:
See actual entry in RTECS for complete information.
Section 12 - ECOLOGICAL INFORMATION

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# 644-06-4: No information available.
Canada
CAS# 644-06-4 is listed on Canada's NDSL List.
CAS# 644-06-4 is not listed on Canada's Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 644-06-4 is listed on the TSCA inventory.

SECTION 16 - ADDITIONAL INFORMATION
N/A

毒理学数据:

1、其他多剂量毒性：大鼠经腹腔TDLo：500mg/kg/5D-I；

2、慢性毒性/致癌性

小鼠经腹腔TDLo：27536μg/kg；

3、 致突变性

果蝇经口：5mg /L；

大鼠肝DNA损害：25μmol /L；

大鼠肝DNA合成：1μmol /L；

CHEMICAL IDENTIFICATION

RTECS NUMBER :
DJ2527000
CHEMICAL NAME :
2H-1-Benzopyran, 6,7-dimethoxy-2,2-dimethyl-
CAS REGISTRY NUMBER :
644-06-4
BEILSTEIN REFERENCE NO. :
0160683
LAST UPDATED :
199701
DATA ITEMS CITED :
6
MOLECULAR FORMULA :
C13-H16-O3
MOLECULAR WEIGHT :
220.29

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Intraperitoneal
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
500 mg/kg/5D-I
TOXIC EFFECTS :
Kidney, Ureter, Bladder - changes primarily in glomeruli Kidney, Ureter, Bladder - changes in tubules (including acute renal failure, acute tubular necrosis) Kidney, Ureter, Bladder - hematuria
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Intraperitoneal
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
27536 ug/kg
TOXIC EFFECTS :
Tumorigenic - Carcinogenic by RTECS criteria Liver - tumors
TYPE OF TEST :
Specific locus test

MUTATION DATA

TYPE OF TEST :
Unscheduled DNA synthesis
TEST SYSTEM :
Rodent - rat Liver
DOSE/DURATION :
1 umol/L
REFERENCE :
CALEDQ Cancer Letters (Shannon, Ireland). (Elsevier Scientific Pub. Ireland Ltd., POB 85, Limerick, Ireland) V.1- 1975- Volume(issue)/page/year: 26,311,1985

危害码 (欧洲) Xi
安全声明 (欧洲) S24/25
RTECS号 DJ2527000
海关编码 2909199090
海关编码 2909199090
中文概述 2909199090. 其他无环醚及其卤化衍生物（包括磺化，硝化或亚硝化衍生物）. 增值税率:17.0%. 退税率:13.0%. 监管条件:无. 最惠国关税:5.5%. 普通关税:30.0%
申报要素 品名, 成分含量, 用途
Summary 2909199090. other acyclic ethers and their halogenated, sulphonated, nitrated or nitrosated derivatives. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:5.5%. General tariff:30.0%

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