EGTA

Modify Date: 2024-01-02 17:04:19

EGTA Structure
EGTA structure
Common Name EGTA
CAS Number 67-42-5 Molecular Weight 380.348
Density 1.4±0.1 g/cm3 Boiling Point 678.0±55.0 °C at 760 mmHg
Molecular Formula C14H24N2O10 Melting Point 241 °C (dec.)(lit.)
MSDS Chinese USA Flash Point 363.9±31.5 °C

 Use of EGTA


EGTA is a specific calcium ion chelator. EGTA has an apparent calcium dissociation constant (Kd) of 60.5 nM at physiological pH (7.4) and has very high specificity for Ca2+ over Mg2+ (Mg2+ Kd 1-10 mM). EGTA significantly inhibited the substrate adherence capacity of inflammatory macrophages[1][2].

 Names

Name ethylene glycol bis(2-aminoethyl)tetraacetic acid
Synonym More Synonyms

 EGTA Biological Activity

Description EGTA is a specific calcium ion chelator. EGTA has an apparent calcium dissociation constant (Kd) of 60.5 nM at physiological pH (7.4) and has very high specificity for Ca2+ over Mg2+ (Mg2+ Kd 1-10 mM). EGTA significantly inhibited the substrate adherence capacity of inflammatory macrophages[1][2].
Related Catalog
In Vitro EGTA, proposed as endodontic irrigant, decreases substrate adherence capacity of inflammatory macrophages in a time- and dose-dependent manner. The EGTA concentration that causes an IC50 is 202 mM. Chelators react with calcium ions in the hydroxyapatite crystals to produce a metallic chelate. Removal of calcium ions from the dentine makes the dentinal tissue softer, especially the hydroxyapatite-rich peritubular dentin and increases the diameter of exposed dentinal tubules[2].
References

[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.

 Chemical & Physical Properties

Density 1.4±0.1 g/cm3
Boiling Point 678.0±55.0 °C at 760 mmHg
Melting Point 241 °C (dec.)(lit.)
Molecular Formula C14H24N2O10
Molecular Weight 380.348
Flash Point 363.9±31.5 °C
Exact Mass 380.143097
PSA 174.14000
LogP -2.53
Vapour Pressure 0.0±4.5 mmHg at 25°C
Index of Refraction 1.547
Storage condition Store at RT.
Water Solubility slightly soluble

 Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
AH3760000
CHEMICAL NAME :
Acetic acid, (ethylenebis(oxyethylenenitrilo))tetra-
CAS REGISTRY NUMBER :
67-42-5
BEILSTEIN REFERENCE NO. :
1717370
LAST UPDATED :
199701
DATA ITEMS CITED :
5
MOLECULAR FORMULA :
C14-H24-N2-O10
MOLECULAR WEIGHT :
380.40
WISWESSER LINE NOTATION :
QV1N1VQ2O2O2N1VQ1VQ

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 :
3587 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
TXAPA9 Toxicology and Applied Pharmacology. (Academic Press, Inc., 1 E. First St., Duluth, MN 55802) V.1- 1959- Volume(issue)/page/year: 16,807,1970
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intraperitoneal
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
150 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
NTIS** National Technical Information Service. (Springfield, VA 22161) Formerly U.S. Clearinghouse for Scientific & Technical Information. Volume(issue)/page/year: AD691-490 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - 84753 No. of Facilities: 111 (estimated) No. of Industries: 1 No. of Occupations: 3 No. of Employees: 664 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - 84753 No. of Facilities: 103 (estimated) No. of Industries: 1 No. of Occupations: 4 No. of Employees: 1556 (estimated) No. of Female Employees: 1043 (estimated)

 Safety Information

Personal Protective Equipment Eyeshields;Gloves;type N95 (US);type P1 (EN143) respirator filter
Hazard Codes Xi
Risk Phrases R36/37/38
Safety Phrases S24/25
RIDADR NONH for all modes of transport
WGK Germany 2
RTECS AH3760000
HS Code 29225000

 Synthetic Route

~%

EGTA Structure

EGTA

CAS#:67-42-5

Literature: US2709178 , ;

 Precursor & DownStream

Precursor  2

DownStream  0

 Customs

HS Code 29225000

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 Synonyms

Egtazic acid
ethylene glycol bis(β-aminoethyl ether)-N,N,N',N'-tetraacetic acid
Egtazic
4F 4PP oxalate
CHEL-DE
Ethylene glycol-bis(2-aminoethylether)-N,N,N',N'-tetraacetic acid
EGTA
AEGT
ethylene glycol bis(2-aminoethyl)tetraacetic acid
(Ethylenebis(oxyethylenenitrilo))tetraacetic acid
Ethylene glycol bis(2-aminoethyl ether)tetraacetic acid
EINECS 200-651-2
Ethylene glycol-bis(2-aminoethylether)-N,N,N′,N′-tetraacetic acid
Ethylenebis(oxyethylenenitrilo)tetraacetic acid
MFCD00004291
3,12-Bis(carboxymethyl)-6,9-dioxa-3,12-diazatetradecane-1,14-dioic acid
chel tm-de
GIETA
[ethylenebis(oxyethylenenitrilo)]tetraacetic acid
6,9-Dioxa-3,12-diazatetradecanedioic acid, 3,12-bis(carboxymethyl)-
GEDTA
ebonta
3,6-dioxaoctamethylenedinitrilotetraacetic acid
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