140-01-2 Usage
Description
Pentasodium DTPA, also known as Diethylenetriamine-pentaacetic acid pentasodium salt, is an organic chelating agent characterized by its clear light yellow solution. It is widely recognized for its ability to bind with metal ions, particularly lead ions, making it a valuable compound in various applications.
Uses
Used in Environmental Analysis:
Pentasodium DTPA is used as a chelating agent for the quantitative measurement of lead ions. It plays a crucial role in competitive indirect enzyme-linked immunoassays, providing accurate and reliable results for lead ion detection.
Used in Water Quality Testing:
In the field of water quality testing, Pentasodium DTPA is utilized in one-step immunochromatographic assays (ICA) for the rapid detection of lead ions in water samples. This application ensures quick and efficient monitoring of lead contamination in water supplies, safeguarding public health and environmental safety.
Used in Chemical Research:
As an organic chelating agent, Pentasodium DTPA is also employed in chemical research for studying the interactions between metal ions and various compounds. This contributes to the development of new methods and techniques in chemical analysis and environmental monitoring.
Flammability and Explosibility
Nonflammable
Check Digit Verification of cas no
The CAS Registry Mumber 140-01-2 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 1,4 and 0 respectively; the second part has 2 digits, 0 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 140-01:
(5*1)+(4*4)+(3*0)+(2*0)+(1*1)=22
22 % 10 = 2
So 140-01-2 is a valid CAS Registry Number.
InChI:InChI=1/C14H23N3O10.5Na/c18-10(19)5-15(1-3-16(6-11(20)21)7-12(22)23)2-4-17(8-13(24)25)9-14(26)27;;;;;/h1-9H2,(H,18,19)(H,20,21)(H,22,23)(H,24,25)(H,26,27);;;;;/q;5*+1
140-01-2Relevant articles and documents
Spectroscopic Studies of Transition-metal Ion Complexes of Diethylenetriaminepenta-acetic Acid and Diethylenetriaminepenta-methylphosphonic Acid
Oakes, John,Kralingen, Cornelis G. van
, p. 1133 - 1138 (2007/10/02)
The structures of diethylenetriaminepenta-acetate (dtpa) and diethylenetriaminepentamethylphosphonate (dtpmp) complexes of transition-metal ions in aqueous solution have been investigated by n.m.r., e.s.r., and electronic absorption spectroscopy.It is shown that dtpa complexes are much less hydrated than corresponding ethylenediaminetetra-acetate (edta) complexes, consistent with the increase in stability constants.The most marked reduction in water binding on replacing edta by dtpa occurs with Fe3+ and Mn2+ and it is demonstrated using e.s.r. that there is a change in overall stereochemistry from a seven- to a predominantly six-co-ordinate structure for Fe3+.Other dtpa complexes adopt octahedral symmetry as do all the dtpmp complexes.Complexes of dtpmp with Co2+, Ni2+, and , to a lesser extent, Cu2+ have lower hydration numbers than the corresponding ethylenediaminetetramethylphosphonate (edtmp) counterparts, due to simultaneous binding of three nitrogen donors in dtpmp.The III(dtpmp)>7- complex has one bound water similar to III(edtmp)>5-, but the manganese(II) complex of dtpmp is more hydrated than the corresponding edtmp complex.Is is concluded that phosphonate groups produce a less effective crystal field than do carboxyl groups.
