SiR-NHS Ester

Also known as: 2,5-Dioxopyrrolidin-1-yl 3,7-bis(dimethylamino)-5,5-dimethyl-3'-oxo-3'H,5H-spiro[dibenzo[b,e]siline-10,1'-isobenzofuran]-6'-carboxylate, 2,5-dioxopyrrolidin-1-yl 6',12'-bis(dimethylamino)-9',9'-dimethyl-3-oxo-3H-9'-silaspiro[2-benzofuran-1,2'-tricyclo[8.4.0.03,?]tetradecane]-1'(10'),3',5',7',11',13'-hexaene-6-carboxylate, Si-TAMRA-6-NHS

SiR-NHS Ester (CAS 1808181-14-7) is a compound in the Esters category listed in the Jingsj chemical database. It has the molecular formula C31H31N3O6Si and a molecular weight of 569.7 g/mol. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 1808181-14-7
Jingsj CID: J-566440-5
Molecular Formula: C₃₁H₃₁N₃O₆Si
Molecular Weight: 569.7 g/mol
Category: Esters
Last updated: 8/21/2026

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Physicochemical Properties

Smiles	CN(C)c1ccc2c(c1)[Si](C)(C)c1cc(N(C)C)ccc1C21OC(=O)c2ccc(C(=O)ON3C(=O)CCC3=O)cc21

Frequently Asked Questions

What is the CAS number of SiR-NHS Ester?

The CAS number of SiR-NHS Ester is 1808181-14-7.

What are the molecular formula and molecular weight of SiR-NHS Ester?

SiR-NHS Ester has molecular formula C31H31N3O6Si and molecular weight 569.7 g/mol.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated: 8/21/2026

How to cite: Jingsj. "SiR-NHS Ester (CAS 1808181-14-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-566440-5 (accessed 2026-11-06).

Data for reference only; verify product details with suppliers before purchase.