NOTA-NHS ester, 90%

About NOTA-NHS ester, 90%

NOTA-NHS ester is a five-membered N-heterocycle carrying the CAS registry number 1338231-09-6, specified at 90% purity. The compound has the formula C16H24N4O8, corresponding to a molecular weight of 400.38 g/mol. The IUPAC name is 2-[4-(carboxymethyl)-7-[2-(2,5-dioxopyrrolidin-1-yl)oxy-2-oxoethyl]-1,4,7-triazonan-1-yl]acetic acid. Common synonyms include EX-A8277H.

The material typically appears as white to off-white powder or crystals or chunks. Recommended storage is at 2–8 °C, with the container kept tightly sealed. Handle it with standard laboratory precautions and appropriate personal protective equipment.

It is commonly used for organic synthesis and API synthesis. Typical end-use sectors are pharmaceutical manufacturing and academic and industrial research.

Available in 10 mg, 100 mg and 1 g packs, NOTA-NHS ester is dispatched with a Certificate of Analysis (COA) to destinations worldwide. SDS and detailed specification sheets can be requested with your quotation.

Typical applications

Organic synthesis
API synthesis

Industries

Specifications & identifiers

Chemical identifiers
Product name	NOTA-NHS ester, 90%
Catalogue No.	VQ-012629
CAS Number	1338231-09-6
IUPAC name	2-[4-(carboxymethyl)-7-[2-(2,5-dioxopyrrolidin-1-yl)oxy-2-oxoethyl]-1,4,7-triazonan-1-yl]acetic acid
Molecular formula	C₁₆H₂₄N₄O₈
Molecular weight	400.38 g/mol
Exact mass	400.1594
Purity / assay	90%
HSN code	29420090
InChIKey	UYDHNYKGXODDAV-UHFFFAOYSA-N
SMILES	C1CC(=O)N(C1=O)OC(=O)CN2CCN(CCN(CC2)CC(=O)O)CC(=O)O
PubChem CID	90003233

Physical properties
Physical form	Crystalline
Appearance	White to off-white powder or crystals or chunks
LogP (XLogP3)	-6.2
H-bond donors / acceptors	2 / 11
TPSA	148 Å²
Storage	2–8 °C

Documents

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

Frequently asked questions

What is the CAS number of NOTA-NHS ester, 90%?

The CAS Registry Number of NOTA-NHS ester, 90% is 1338231-09-6. It is also known as EX-A8277H, 1H-1,4,7-Triazonine-1,4,7-triacetic acid, hexahydro-, 1-(2,5-dioxo-1-pyrrolidinyl) ester.

What is the molecular formula and molecular weight of NOTA-NHS ester, 90%?

NOTA-NHS ester, 90% has the molecular formula C16H24N4O8 and a molecular weight of 400.38 g/mol. Its IUPAC name is 2-[4-(carboxymethyl)-7-[2-(2,5-dioxopyrrolidin-1-yl)oxy-2-oxoethyl]-1,4,7-triazonan-1-yl]acetic acid.

Which grade and pack sizes of NOTA-NHS ester, 90% can I order?

We supply NOTA-NHS ester, 90% in (90%) grade, in 10 mg, 100 mg, 1 g packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with NOTA-NHS ester, 90%?

Yes. Every lot of NOTA-NHS ester, 90% 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 NOTA-NHS ester, 90% be shipped internationally?

Yes. We export NOTA-NHS ester, 90% worldwide by air and sea freight or express courier, on EXW, FOB, CIF, CFR or DAP Incoterms, with full export documentation.

How should NOTA-NHS ester, 90% be stored?

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