DAPT (GSI-IX)

Also known as: (2S)-N-[(3,5-Difluorophenyl)acetyl]-L-alanyl-2-phenylglycine 1,1-dimethylethyl ester, (2S)-N-[N-(3,5-Difluorophenacetyl)-L-alanyl]-2-phenylglycine tert-butyl ester, (3,5-Difluorophenylacetyl)-Ala-Phg-OtBu, (3,5-Difluorophenylacetyl)-L-alanyl-L-2-phenylglycine tert-Butyl Ester, 2-Methyl-2-propanyl (2S)-({N-[(3,5-difluorophenyl)acetyl]-L-alanyl}amino)(phenyl)acetate, Benzeneacetic acid, α-[[(2S)-2-[[2-(3,5-difluorophenyl)acetyl]amino]-1-oxopropyl]amino]-, 1,1-dimethylethyl ester, (αS)-, CS-175, GSI IX, GSI-IX, GSI-IX LY-374973 N-[N-(3,5-Difluorophenacetyl)-L-alanyl]-S-phenylglycine t-butyl ester, GSIIX, LY-374973, N-[N-(3,5-Difluorophenacetyl)-L-alanyl]-S-phenylglycine t-butyl ester, N-[(3,5-Difluorophenyl)acetyl]-L-alanyl-2-phenyl]glycine-1,1-dimethylethylester, N-[N-(3,5-difluorophenylacetyl)-L-alanyl]-(S)-phenylglycine t-butyl ester, SC-201315, tert-butyl (2S)-({N-[(3,5-difluorophenyl)acetyl]-L-alanyl}amino)(phenyl)ethanoate, tert-butyl (2S)-2-[[(2S)-2-[[2-(3,5-difluorophenyl)acetyl]amino]propanoyl]amino]-2-phenylacetate, γ-Secretase Inhibitor IX - CAS 208255-80-5 - Calbiochem

DAPT (GSI-IX) (CAS 208255-80-5) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C23H26F2N2O4 and a molecular weight of 432.460 g/mol. It is also known as (2S)-N-[(3,5-Difluorophenyl)acetyl]-L-alanyl-2-phenylglycine 1,1-dimethylethyl ester, (2S)-N-[N-(3,5-Difluorophenacetyl)-L-alanyl]-2-phenylglycine tert-butyl ester and (3,5-Difluorophenylacetyl)-Ala-Phg-OtBu. Key properties include a boiling point of 612.2±55.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 324.1±31.5 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
208255-80-5
Jingsj CID
J-1987523-5
Molecular Formula
C23H26F2N2O4
Molecular Weight
432.460 g/mol
Category
Organic Compounds
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point612.2±55.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point324.1±31.5 °C

Frequently Asked Questions

What is the CAS number of DAPT (GSI-IX)?

The CAS number of DAPT (GSI-IX) is 208255-80-5.

What are the molecular formula and molecular weight of DAPT (GSI-IX)?

DAPT (GSI-IX) has molecular formula C23H26F2N2O4 and molecular weight 432.460 g/mol.

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

Last updated:

How to cite: Jingsj. "DAPT (GSI-IX) (CAS 208255-80-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1987523-5 (accessed 2026-10-22).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.