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中文名 乙二醇二乙醚二胺四乙酸四钠
英文名 Ethylene glycol-bis(beta-aminoethyl ether)-N,N,N,N-tetraacetic acid tetrasodium salt
中文别名 乙二醇双(2-氨基乙基)四乙酸四钠
3,6-二氧杂-1,8-辛二胺四乙酸四钠
英文别名 tetrasodium,2-[2-[2-[2-[bis(carboxylatomethyl)amino]ethoxy]ethoxy]ethyl-(carboxylatomethyl)amino]acetate
Tetrasodium 3,12-bis(carboxylatomethyl)-6,9-dioxa-3,12-diazatetradecane-1,14-dioate
Ethylene glycol-bis(beta-aminoethyl ether)-N,N,N′,N′-tetraacetic acid tetrasodium salt
描述 EGTA四钠是一种特殊的钙离子螯合剂。EGTA四钠在生理pH(7.4)下的表观钙离解常数(Kd)为60.5nm,对Ca2+比Mg2+具有非常高的特异性(Mg2+KD1-10mM)。EGTA四钠显著抑制炎症巨噬细胞的基质粘附能力[1][2]。
相关类别
体外研究 EGTA四钠作为根管冲洗剂,以时间和剂量依赖性方式降低炎症巨噬细胞的基质粘附能力。引起IC50的EGTA四钠浓度为202 mM。螯合剂与羟基磷灰石晶体中的钙离子反应生成金属螯合物。去除牙本质中的钙离子会使牙本质组织更柔软,尤其是富含羟基磷灰石的管周牙本质,并增加暴露的牙本质小管的直径[2]。
参考文献

[1]. Harris RA, Hanrahan JW. Effects of EGTA on calcium signaling in airway epithelial cells. Am J Physiol. 1994;267(5 Pt 1):C1426-C1434. doi:10.1152/ajpcell.1994.267.5.C1426.

[2]. Segura-Egea JJ, Jiménez-Rubio A, Rios-Santos JV, Velasco-Ortega E, Calvo-Gutierrez JR. In vitro inhibitory effect of EGTA on macrophage adhesion: endodontic implications. J Endod. 2003;29(3):211-213.

分子式 C14H20N2Na4O10
分子量 468.275
精确质量 468.070862
PSA 185.46000
储存条件 室温,密闭,干燥

Section 1. Chemical Product and Company Identification
Ethylene glycol-bis(beta-aminoethylether)- Catalog
Common Name/
Number(s).
Trade Name
N,N,N',N'-tetraacetic acid Tetrasodium Salt
CAS#
Ethylene glycol-bis(beta-aminoethylether)-
N,N,N',N'-tetraacetic acid Tetrasodium Salt

Section 4. First Aid Measures
Eye ContactCheck for and remove any contact lenses. In case of contact, immediately flush eyes with plenty of water for at
least 15 minutes. Cold water may be used. Get medical attention if irritation occurs.
Skin ContactWash with soap and water. Cover the irritated skin with an emollient. Get medical attention if irritation develops.
Cold water may be used.
Serious Skin ContactNot available.
Inhalation
If inhaled, remove to fresh air. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get
medical attention.
Serious InhalationNot available.
IngestionDo NOT induce vomiting unless directed to do so by medical personnel. Never give anything by mouth to an
unconscious person. If large quantities of this material are swallowed, call a physician immediately. Loosen tight
clothing such as a collar, tie, belt or waistband.
Serious IngestionNot available.

Section 5. Fire and Explosion Data
Flammability of the Product May be combustible at high temperature.
Auto-Ignition Temperature Not available.
Flash PointsNot available.
Flammable LimitsNot available.
Products of CombustionThese products are carbon oxides (CO, CO2), nitrogen oxides (NO, NO2...). Some metallic oxides.
Fire Hazards in Presence of Slightly flammable to flammable in presence of heat.
Various Substances
Explosion Hazards in Presence Risks of explosion of the product in presence of mechanical impact: Not available.
of Various SubstancesRisks of explosion of the product in presence of static discharge: Not available.
Fire Fighting MediaSMALL FIRE: Use DRY chemical powder.
LARGE FIRE: Use water spray, fog or foam. Do not use water jet.
and Instructions
Special Remarks onMaterial in powder form, capable of creating a dust explosion. As with most organic solids, fire is possible at
Fire Hazardselevated temperatures
Special Remarks on Explosion Fine dust dispersed in air in sufficient concentrations, and in the presence of an ignition source is a potential dust
Hazardsexplosion hazard.

Section 6. Accidental Release Measures
Small SpillUse appropriate tools to put the spilled solid in a convenient waste disposal container. Finish cleaning by
spreading water on the contaminated surface and dispose of according to local and regional authority
requirements.
Large SpillUse a shovel to put the material into a convenient waste disposal container. Finish cleaning by spreading water
on the contaminated surface and allow to evacuate through the sanitary system.
Ethylene glycol-bis(beta-aminoethylether)-
N,N,N',N'-tetraacetic acid Tetrasodium Salt

Section 7. Handling and Storage
PrecautionsKeep away from heat. Keep away from sources of ignition. Ground all equipment containing material. Do not
breathe dust. Keep away from incompatibles such as oxidizing agents.
StorageKeep container tightly closed. Keep container in a cool, well-ventilated area.

Section 8. Exposure Controls/Personal Protection
Engineering ControlsUse process enclosures, local exhaust ventilation, or other engineering controls to keep airborne levels below
recommended exposure limits. If user operations generate dust, fume or mist, use ventilation to keep exposure to
airborne contaminants below the exposure limit.
Personal ProtectionSafety glasses. Lab coat. Dust respirator. Be sure to use an approved/certified respirator or equivalent. Gloves.
Personal Protection in Case of Splash goggles. Full suit. Dust respirator. Boots. Gloves. A self contained breathing apparatus should be used
a Large Spillto avoid inhalation of the product. Suggested protective clothing might not be sufficient; consult a specialist
BEFORE handling this product.
Exposure LimitsNot available.

Section 9. Physical and Chemical Properties
Physical state and appearance Solid. (Powdered solid.)OdorNot available.
TasteNot available.
Molecular Weight468.28 g/mole
ColorWhite.
pH (1% soln/water)Not available.
Boiling PointNot available.
Not available.
Melting Point
Critical TemperatureNot available.
Specific GravityNot available.
Vapor PressureNot applicable.
Vapor DensityNot available.
VolatilityNot available.
Odor ThresholdNot available.
Not available.
Water/Oil Dist. Coeff.
Ionicity (in Water)Not available.
See solubility in water.
Dispersion Properties
SolubilitySoluble in cold water.

Section 10. Stability and Reactivity Data
StabilityThe product is stable.
Not available.
Instability Temperature
Conditions of InstabilityExcess heat, incompatible materials, dust generation.
Incompatibility with variousReactive with oxidizing agents.
substances
CorrosivityNot available.
Ethylene glycol-bis(beta-aminoethylether)-
N,N,N',N'-tetraacetic acid Tetrasodium Salt
Not available.
Special Remarks on
Reactivity
Special Remarks onNot available.
Corrosivity
PolymerizationWill not occur.

Section 11. Toxicological Information
Routes of EntryInhalation. Ingestion.
Toxicity to AnimalsLD50: Not available.
LC50: Not available.
Chronic Effects on Humans Not available.
Other Toxic Effects onSlightly hazardous in case of skin contact (irritant), of ingestion, of inhalation.
Humans
Special Remarks on
Not available.
Toxicity to Animals
Special Remarks onNot available.
Chronic Effects on Humans
Special Remarks on otherAcute Potential Health Effects:
Toxic Effects on HumansSkin: May cause skin irritation.
Eyes: May cause eye irritation.
Inhalation: Inhalation of dust may cause respiratory tract irritation.
Ingestion: Expected to have low toxicity and be a low hazard.

Section 12. Ecological Information
EcotoxicityNot available.
Not available.
BOD5 and COD
Products of BiodegradationPossibly hazardous short term degradation products are not likely. However, long term degradation products may
arise.
Toxicity of the ProductsThe product itself and its products of degradation are not toxic.
of Biodegradation
Special Remarks on theNot available.
Products of Biodegradation

Section 13. Disposal Considerations
Waste DisposalWaste must be disposed of in accordance with federal, state and local environmental
control regulations.

Section 14. Transport Information
DOT ClassificationNot a DOT controlled material (United States).
IdentificationNot applicable.
Not applicable.
Special Provisions for
Transport
Ethylene glycol-bis(beta-aminoethylether)-
N,N,N',N'-tetraacetic acid Tetrasodium Salt
DOT (Pictograms)

Section 15. Other Regulatory Information and Pictograms
Federal and StateNo products were found.
Regulations
CaliforniaCalifornia prop. 65: This product contains the following ingredients for which the State of California has found
Proposition 65to cause cancer which would require a warning under the statute: No products were found.
Warnings
California prop. 65: This product contains the following ingredients for which the State of California has found
to cause birth defects which would require a warning under the statute: No products were found.
Other RegulationsEINECS: This product is not on the European Inventory of Existing Commercial Chemical Substances.
Canada: Not listed on Canadian Domestic Substance List (DSL) or Canadian Non- Domestic Substance List
(NDSL).
China: Not listed on National Inventory.
Japan: Not listed on National Inventory (ENCS).
Korea: Not listed on National Inventory (KECI).
Philippines: Not listed on National Inventory (PICCS).
Australia: Not listed on AICS.
WHMIS (Canada) Not controlled under WHMIS (Canada).
Other Classifications
DSCL (EEC)This product is not classified according Not applicable.
to the EU regulations.
Health Hazard
HMIS (U.S.A.)1 National Fire Protection
1 Flammability
1 Association (U.S.A.)
Fire Hazard
1 0 Reactivity
Health
Reactivity
0
Specific hazard
Personal Protection
E
WHMIS (Canada)
(Pictograms)
DSCL (Europe)
(Pictograms)
TDG (Canada)
(Pictograms)
ADR (Europe)
(Pictograms)
Protective Equipment
Gloves.
Ethylene glycol-bis(beta-aminoethylether)-
N,N,N',N'-tetraacetic acid Tetrasodium Salt
Lab coat.
Dust respirator. Be sure to use an
approved/certified respirator or
equivalent.


SECTION 16 - ADDITIONAL INFORMATION
N/A
个人防护装备 Eyeshields;Gloves;type N95 (US);type P1 (EN143) respirator filter
安全声明 (欧洲) 22-24/25
危险品运输编码 NONH for all modes of transport