Boc-Cys(NPys)-OH
Also known as: Nα-Boc-S-(3-nitro-2-pyridylthio)-L-cysteine, N-tert-Butoxycarbonyl-[S-(3-nitro-2-pyridinesulfenyl)]-L-cysteine, N-[(1,1-dimethylethoxy)carbonyl]-3-[(3-nitro-2-pyridinyl)dithio]-L-alanine, Boc-L-Cys(Npys)-OH, t-Bcnp, (2R)-2-[(2-methylpropan-2-yl)oxycarbonylamino]-3-[(3-nitropyridin-2-yl)disulfanyl]propanoic acid
Boc-Cys(NPys)-OH (CAS 76880-29-0) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C13H17N3O6S2 and a molecular weight of 375.421 g/mol. Key properties include a melting point of -160ºC (dec.), a boiling point of 553.9±50.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 288.8±30.1 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 76880-29-0
- Jingsj CID
- J-43761-6
- Molecular Formula
- C13H17N3O6S2
- Molecular Weight
- 375.421 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | -160ºC (dec.) |
|---|---|
| Boiling Point | 553.9±50.0 °C at 760 mmHg |
| Density | 1.4±0.1 g/cm3 |
| Flash Point | 288.8±30.1 °C |
| Exact Mass | 375.055878 |
| PSA | 184.94000 |
| LogP | 4.25 |
| Vapor Pressure | 0.0±1.6 mmHg at 25°C |
| Refractive Index | 1.616 |
Activity & Biological Data
| Additional Information | [1]. Luckose F, et al. Effects of amino acid derivatives on physical, mental, and physiological activities. Crit Rev Food Sci Nutr. 2015;55(13):1793-807. |
|---|
Frequently Asked Questions
What is the CAS number of Boc-Cys(NPys)-OH?
The CAS number of Boc-Cys(NPys)-OH is 76880-29-0.
What are the molecular formula and molecular weight of Boc-Cys(NPys)-OH?
Boc-Cys(NPys)-OH has molecular formula C13H17N3O6S2 and molecular weight 375.421 g/mol.
What are the upstream and downstream products of Boc-Cys(NPys)-OH?
For Boc-Cys(NPys)-OH, Upstream Products: 3-Nitro-2-pyridinesulfenyl chloride, Boc-Cys(pMeOBzl)-OH, N-Boc-S-Trityl-L-cysteine; Downstream Products: 3-Nitro-2-pyridinethiol, Boc-L-cysteine, N,N'-Bis(tert-butoxycarbonyl)-L-cystine.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Boc-Cys(NPys)-OH (CAS 76880-29-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-43761-6 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.