170908-81-3

170908-81-3 structure

Name: DOTA-NHS-ester
Chemical Name: DOTA mono-N-hydroxysuccinimide ester
CAS Number: 170908-81-3
Molecular Formula: C₂₀H₃₁N₅O₁₀
Molecular Weight: 501.48800
Catalog: Signaling Pathways Antibody-drug Conjugate ADC Linker
Create Date: 2018-06-03 08:00:00
Modify Date: 2024-01-03 10:54:38
DOTA-NHS-ester is a linker for affibody molecules and is applied in small animals PET, SPECT, and CT. DOTA-NHS-ester can be used to label radiotherapeutic agents or imaging probes for the detection of tumors[1].

Name	DOTA mono-N-hydroxysuccinimide ester
Synonyms	1,4,7,10-Tetraazacyclododecane-1,4,7,10-tetraacetic acid, 1-(2,5-dioxo-1-pyrrolidinyl) ester 1,4,7,10-Tetraazacyclododecane-1,4,7-triacetic acid,10-[2-[(2,5-dioxo-1-pyrrolidinyl)oxy]-2-oxoethyl]- 1,4,7,10-Tetraazacyclododecane-1,4,7,10-tetraacetic acid,1-(2,5-dioxo-1-pyrrolidinyl) ester

Description	DOTA-NHS-ester is a linker for affibody molecules and is applied in small animals PET, SPECT, and CT. DOTA-NHS-ester can be used to label radiotherapeutic agents or imaging probes for the detection of tumors[1].
Related Catalog	Research Areas >> Cancer Signaling Pathways >> Antibody-drug Conjugate >> ADC Linker
In Vitro	DOTA-NHS-ester can be used to modify human serum albumin (HSA) to produce DOTA-HSA. And DOTA-HSA is furtherly modified by Sulfo-SMCC (HY-D0975) to obtain DOTA-HSA-SMCC. DOTA-HSA-SMCC is conjugated to ZHER2:342 and the final product is DOTA-HSA-ZHER2:342[1]. In a cell uptake assay, DOTA-HSA-ZHER2:342 is labeled by 64Cu, 64Cu-DOTA-HSA-ZHER2:342 (0.5-2 hours) slowly accumulates in the SKOV3 cells and reaches 0.71% of the applied activity at 0.5 h and the uptake increased to 1.58% at 2 h[1].
In Vivo	In a microPET images of a mouse bearing SKOV3 tumor, 64Cu-DOTA-HSA-ZHER2:342 is injected to the mouse tail. microPET images of a mouse bearing SKOV3 tumor at 1, 4, 24 and 48 h after tail vein injection. The SKOV3 tumor is visible with a low tumor-to-background contrast at 1 h post-injection (p.i.), but with a very good tumor-to-background contrast at 4 and 24 h p.i. Quantification analysis reveals that the SKOV3 tumor uptake values increases with time and are found to be 5.63%, 9.98%, 14.34% and 14.12% ID/g at 1, 4, 24, and 48 h, respectively[1].
References	[1]. Hoppmann S, et al. Radiolabeled affibody-albumin bioconjugates for HER2-positive cancer targeting.Bioconjug Chem. 2011 Mar 16;22(3):413-2

Molecular Formula	C₂₀H₃₁N₅O₁₀
Molecular Weight	501.48800
Exact Mass	501.20700
PSA	188.54000

Hazard Codes	Xn
HS Code	2933990090

819869-77-7

~94%

170908-81-3

Literature: Li, Cong; Winnard Jr., Paul T.; Takagi, Tomoyo; Artemov, Dmitri; Bhujwalla, Zaver M. Journal of the American Chemical Society, 2006 , vol. 128, # 47 p. 15072 - 15073

Precursor 1
819869-77-7
DownStream 0

HS Code	2933990090
Summary	2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

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