DOTA-NHS ester, 99%+

Name: DOTA-NHS ester, 99%+
Brand: Vaqora Chemicals
SKU: VQ-000345

About DOTA-NHS ester, 99%+

Listed under CAS 170908-81-3, DOTA-NHS ester is an indicator available from Vaqora Chemicals, specified at ≥99% purity. With the molecular formula C20H31N5O10, it has a molar mass of 501.5 g/mol. It is also known as Tetraxetan N-hydroxysuccinimide or DOTA-NHS-ester.

In its supplied form it is white to almost white powder or crystals. Keep the material at 2–8 °C and protect it from moisture. Handle it with standard laboratory precautions and appropriate personal protective equipment.

Typical applications include titration end-point detection, pH determination, analytical testing and pharmaceutical synthesis. Buyers come mainly from academic and industrial research and pharmaceutical manufacturing.

Available in 25 mg and 100 mg packs, DOTA-NHS ester is dispatched with a Certificate of Analysis (COA) to destinations worldwide. A Safety Data Sheet (SDS) and technical specifications are available on request.

Typical applications

Titration end-point detection
pH determination
Analytical testing
Pharmaceutical synthesis

Industries

Specifications & identifiers

Chemical identifiers
Product name	DOTA-NHS ester, 99%+
Catalogue No.	VQ-000345
CAS Number	170908-81-3
IUPAC name	2-[4,10-bis(carboxymethyl)-7-[2-(2,5-dioxopyrrolidin-1-yl)oxy-2-oxoethyl]-1,4,7,10-tetrazacyclododec-1-yl]acetic acid
Molecular formula	C₂₀H₃₁N₅O₁₀
Molecular weight	501.5 g/mol
Exact mass	501.2071
Purity / assay	≥99%
HSN code	29420090
InChIKey	XSVWFLQICKPQAA-UHFFFAOYSA-N
SMILES	C1CC(=O)N(C1=O)OC(=O)CN2CCN(CCN(CCN(CC2)CC(=O)O)CC(=O)O)CC(=O)O
PubChem CID	11488945

Physical properties
Physical form	Crystalline
Appearance	White to almost white powder or crystals
LogP (XLogP3)	-8.9
H-bond donors / acceptors	3 / 14
TPSA	189 Å²
Storage	2–8 °C
Synonyms	1,4,7,10-Tetraazacyclododecane-1,4,7,10-tetraacetic acid mono-N-hydroxysuccinimide ester, Tetraxetan N-hydroxysuccinimide, DOTA-NHS-ester, DOTA-?NHS-?ester, DOTA NHS ester, DOTA-HS-ster, DOTA-_NHS-_ester, DOTA N-hydroxysuccinimide ester

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Other grades of CAS 170908-81-3

DOTA-NHS ester, 90%+

CAS: 170908-81-3
Formula: C₂₀H₃₁N₅O₁₀
MW: 501.5 g/mol

VQ-000344

Frequently asked questions

What is the CAS number of DOTA-NHS ester, 99%+?

The CAS Registry Number of DOTA-NHS ester, 99%+ is 170908-81-3. It is also known as 1,4,7,10-Tetraazacyclododecane-1,4,7,10-tetraacetic acid mono-N-hydroxysuccinimide ester, Tetraxetan N-hydroxysuccinimide, DOTA-NHS-ester.

What is the molecular formula and molecular weight of DOTA-NHS ester, 99%+?

DOTA-NHS ester, 99%+ has the molecular formula C20H31N5O10 and a molecular weight of 501.5 g/mol. Its IUPAC name is 2-[4,10-bis(carboxymethyl)-7-[2-(2,5-dioxopyrrolidin-1-yl)oxy-2-oxoethyl]-1,4,7,10-tetrazacyclododec-1-yl]acetic acid.

Which grade and pack sizes of DOTA-NHS ester, 99%+ can I order?

We supply DOTA-NHS ester, 99%+ in (≥99%) grade, in 25 mg, 100 mg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with DOTA-NHS ester, 99%+?

Yes. Every lot of DOTA-NHS ester, 99%+ is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can DOTA-NHS ester, 99%+ be shipped internationally?

Yes. We export DOTA-NHS ester, 99%+ worldwide by air and sea freight or express courier, on EXW, FOB, CIF, CFR or DAP Incoterms, with full export documentation.

How should DOTA-NHS ester, 99%+ be stored?

2–8 °C. Keep the container tightly closed and refer to the SDS for full handling guidance.