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inquiryProduct Name: Diethylenetriaminepentaacetic acid (DTPA) Molecular Fomula: C14H23N3O10 Molecular weight: M=393.35 CAS No.: 67-43-6 Appearance:White Crystalline Powder Storage:Store in cool and dry place, away from sun light. Package:25kg/drum Applica
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inquiryProduct Name: Diethylenetriaminepentaacetic acid CAS: 67-43-6 MF: C14H23N3O10 MW: 393.35 EINECS: 200-652-8 Diethylenetriaminepentaacetic acid Structure Diethylenetriaminepentaacetic acid Chemical Properties Melting point 219-220
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inquiryDiethylenetriaminepentaacetic Acid(DTPA) CAS:67-43-6 Specification appearance white crystal powder assay ≥99.00% chelate value(ph=11) ≥252mgcaco3/g heavy metal (pb) ≤0.001% fe ≤0.001% cl ≤0.01% so4 ≤0.50% loss on drying &l
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inquiryformaldehyd
sodium cyanide
1,5-diamino-3-azapentane
diethylenetriaminopentaacetic acid
Conditions | Yield |
---|---|
With aqueous alkali |
diethylenetriaminepentaacetic acid, Ga(III)-salt, dianion
2-(HO)-5-(SO3H)C6H3CHNC2H4NHC2H4NHC2H4NCHC6H3-2-(OH)-5-(SO3H)
B
diethylenetriaminopentaacetic acid
Conditions | Yield |
---|---|
In water-d2 competition was followed by H-NMR spectroscopy, at 25 ° C;; aq. soln. of known pH evapd. to dryness, residue dissolved in equal amt. of D2O, left until equilibrium was reached (5 weeks); |
diethylenetriaminepentaacetic acid, Ga(III)-salt, dianion
B
diethylenetriaminopentaacetic acid
Conditions | Yield |
---|---|
In water-d2 competition reaction followed by H-NMR spectroscopy, at 25 ° C at pH 7.5; aq. soln. of known pH evapd. to dryness in vacuo, residue dissolved in equal volume of D2O, and left until equilibrium left (12 weeks);; |
diethylenetriaminopentaacetic acid
diethylenetriaminepentaacetic dianhydride
Conditions | Yield |
---|---|
With pyridine; acetic anhydride at 80℃; for 24h; | 99% |
With pyridine; acetic anhydride at 65℃; for 3h; | 97% |
With pyridine; acetic anhydride In acetonitrile at 60℃; for 4h; Solvent; Temperature; Large scale; | 97% |
diethylenetriaminopentaacetic acid
Conditions | Yield |
---|---|
In water equimolar amts., pH=2-4 (pptn.); elem. anal.; | 99% |
Conditions | Yield |
---|---|
Stage #1: diethylenetriaminopentaacetic acid; 1-deoxy-1-(methylamino)-D-glucitol In water for 0.0333333h; Sonication; Green chemistry; Stage #2: gadolinium(III) oxide In water for 0.3h; Sonication; Green chemistry; | 98% |
methanol
diethylenetriaminopentaacetic acid
methyl 5,8,11,-tris(2-methoxy-2-oxoethyl)-3-oxo-2-oxa-5,8,11-triazatridecan-13-oate
Conditions | Yield |
---|---|
With thionyl chloride In methanol for 4h; Heating; | 95% |
With thionyl chloride for 16h; | 84% |
Conditions | Yield |
---|---|
In N,N-dimethyl-formamide at 20℃; for 24h; Inert atmosphere; | 95% |
ethanol
diethylenetriaminopentaacetic acid
pentaethyl diethylenetriamine-N,N,N',N'',N''-pentaacetate
Conditions | Yield |
---|---|
Stage #1: ethanol; diethylenetriaminopentaacetic acid; sulfuric acid for 24h; Heating / reflux; Stage #2: With sodium hydrogencarbonate In ethanol; water | 91% |
With sulfonic acid Heating; | 79% |
With sulfuric acid for 20h; Esterification; Heating; | 78% |
With sulfuric acid for 20h; Reflux; Inert atmosphere; | 76% |
With hydrogenchloride at 20 - 78℃; for 48h; Large scale; | 20 kg |
diethylenetriaminopentaacetic acid
copper-diethylenetriaminepentaacetic acid complex
Conditions | Yield |
---|---|
With copper(II) carbonate In water for 18h; | 90% |
diethylenetriaminopentaacetic acid
Conditions | Yield |
---|---|
In water boiled for 3-4 h; cooled, filtered off, filtrate evapd., treated with ethanol; elem. anal.; | 90% |
diethylenetriaminopentaacetic acid
1-aminooctadecane
1,11-bis(octadecylamino)-1,11-dioxo-6-aza-3,6,9-tris(carboxymethyl)undecane
Conditions | Yield |
---|---|
In N,N-dimethyl-formamide at 50℃; | 90% |
diethylenetriaminopentaacetic acid
Conditions | Yield |
---|---|
With Na2CO3 In water aq. soln. of pentacarboxylic acid treated with Na2CO3; aq. soln. of metal salt added dropwise at room temp. with stirring; mixt. stirred for 12 h; soln. slowly concd. on steam bath; added dropwise into acetone; ppt. filtered off; washed with acetone; dried under vac.; recrystd.; elem. anal.; | 89% |
Conditions | Yield |
---|---|
at 170℃; for 168h; Autoclave; | 88% |
diethylenetriaminopentaacetic acid
Conditions | Yield |
---|---|
In water heated under N2 in an autoclave at a pressure of 20 atm and 150°C for 6 h; cooled, filtered off, filtrate evapd., treated with ethanol; elem. anal.; | 86% |
diethylenetriaminopentaacetic acid
Conditions | Yield |
---|---|
With Na2CO3 In water aq. soln. of pentacarboxylic acid treated with Na2CO3; aq. soln. of metal salt added dropwise at room temp. with stirring; mixt. stirred for 12 h; soln. slowly concd. on steam bath; added dropwise into acetone; ppt. filtered off; washed with acetone; dried under vac.; recrystd.; elem. anal.; | 86% |
diethylenetriaminopentaacetic acid
Conditions | Yield |
---|---|
With Na2CO3 In water aq. soln. of pentacarboxylic acid treated with Na2CO3; aq. soln. of metal salt added dropwise at room temp. with stirring; mixt. stirred for 12 h; soln. slowly concd. on steam bath; added dropwise into acetone; ppt. filtered off; washed with acetone; dried under vac.; recrystd.; elem. anal.; | 85% |
diethylenetriaminopentaacetic acid
N-[2-(2,6-dioxo-4-morpholinyl)ethyl]-N-[3-(2,6-dioxo-4-morpholinyl)propyl]
Conditions | Yield |
---|---|
With pyridine; acetic anhydride at 60℃; for 24h; Inert atmosphere; | 85% |
diethylenetriaminopentaacetic acid
Conditions | Yield |
---|---|
In water Gd2O3 and diethylenetriaminepentaacetic acid soln. was stirred at 368 K for 6,5 h, NaOH was slowly added at room temp. to pH 7 with stirring; after filtration mixt. was concd. in vac. and pptd. with acetone; recrystn. from hot H2O/acetone; elem. anal.; | 84% |
Conditions | Yield |
---|---|
Stage #1: morpholine; diethylenetriaminopentaacetic acid In water for 0.0333333h; Sonication; Green chemistry; Stage #2: gadolinium(III) oxide In water for 0.3h; Sonication; Green chemistry; | 84% |
diethylenetriaminopentaacetic acid
Conditions | Yield |
---|---|
With Na2CO3 In water aq. soln. of pentacarboxylic acid treated with Na2CO3; aq. soln. of metal salt added dropwise at room temp. with stirring; mixt. stirred for 12 h; soln. slowly concd. on steam bath; added dropwise into acetone; ppt. filtered off; washed with acetone; dried under vac.; recrystd.; elem. anal.; | 83% |
diethylenetriaminopentaacetic acid
acetic anhydride
diethylenetriaminepentaacetic dianhydride
Conditions | Yield |
---|---|
With pyridine at 65℃; for 24h; | 83% |
In pyridine at 80℃; | |
With pyridine at 65℃; for 24h; | |
With pyridine In pyridine at 65℃; for 24h; |
diethylenetriaminopentaacetic acid
Conditions | Yield |
---|---|
With Na2CO3 In water aq. soln. of pentacarboxylic acid treated with Na2CO3; aq. soln. of metal salt added dropwise at room temp. with stirring; mixt. stirred for 12 h; soln. slowly concd. on steam bath; added dropwise into acetone; ppt. filtered off; washed with acetone; dried under vac.; recrystd.; elem. anal.; | 82% |
Conditions | Yield |
---|---|
Stage #1: holmium(III) oxide; diethylenetriaminopentaacetic acid In water for 15h; Reflux; Stage #2: water; methylamine pH=6; | 78.96% |
diethylenetriaminopentaacetic acid
C11(13)CH13NO4
C25(13)CH34N4O13
Conditions | Yield |
---|---|
With dmap; 2-(3H-[1,2,3]triazolo[4,5-b]pyridin-3-yl)-1,1,3,3-tetramethylisouronium hexafluorophosphate; N-ethyl-N,N-diisopropylamine In N,N-dimethyl-formamide | 77% |
(2R)-N-amino-2-[(tert-butoxy)carbonylamino]-3-(4-phenylphenyl)propanamide 2,2,2-trifluoroacetic acid
diethylenetriaminopentaacetic acid
trifluoroacetic acid
Conditions | Yield |
---|---|
Stage #1: (2R)-N-amino-2-[(tert-butoxy)carbonylamino]-3-(4-phenylphenyl)propanamide 2,2,2-trifluoroacetic acid; diethylenetriaminopentaacetic acid With HBTU; N-ethyl-N,N-diisopropylamine In N,N-dimethyl-formamide at 20℃; for 0.75h; Stage #2: trifluoroacetic acid With chlorotriisopropylsilane In dichloromethane at 20℃; for 4h; | 73% |
Conditions | Yield |
---|---|
With nitric acid In water dissolving of (guanidinium)3(Nb(O2)4) in water, addn. of 35 wt% H2O2 soln., addn. of HOOCCH2N(C2H4N(CH2COOH)2)2 with stirring; adjusting of pH to 3 with nitric acid; gentle heating for a few minites at 70°C; addn. of EtOH, pptn. for 24 h at 5°C; filtration, washing with ethanol, drying in air; elem. anal.; | 70% |
Conditions | Yield |
---|---|
at 170℃; for 168h; Autoclave; | 69.5% |
Conditions | Yield |
---|---|
With triethylamine In N,N-dimethyl-formamide at 20℃; for 26h; | 63.63% |
Conditions | Yield |
---|---|
With triethylamine In N,N-dimethyl-formamide at 20℃; for 26h; | 63.51% |
Conditions | Yield |
---|---|
With dmap In dimethyl sulfoxide at 20℃; for 3h; | 62.51% |
Conditions | Yield |
---|---|
With dmap In dimethyl sulfoxide at 20℃; for 3h; | 62.42% |
Conditions | Yield |
---|---|
With sodium carbonate In N,N-dimethyl-formamide at 20℃; for 3h; | 62.4% |
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