Boc-L-2,4-diaminobutyric acid
Also known as: (S)-4-Amino-2-(tert-butoxycarbonylamino)butanoic acid, (S)-4-Amino-2-(Boc-amino)butyric acid, (S)-Nα-Boc-2,4-diaminobutyric acid, Boc-Dab-OH, (S)-4-Amino-2-(tert-butoxycarbonylamino)butyric acid
Boc-L-2,4-diaminobutyric acid (CAS 25691-37-6) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C9H18N2O4 and a molecular weight of 218.250 g/mol. Key properties include a melting point of 202 °C(dec.), a boiling point of 385.1±42.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 186.7±27.9 °C. It is classified under GHS with signal word Danger and hazard statements H315 — Causes skin irritation and H318 — Causes serious eye damage. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 25691-37-6
- Jingsj CID
- J-31929-9
- Molecular Formula
- C9H18N2O4
- Molecular Weight
- 218.250 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 202 °C(dec.) |
|---|---|
| Boiling Point | 385.1±42.0 °C at 760 mmHg |
| Density | 1.2±0.1 g/cm3 |
| Flash Point | 186.7±27.9 °C |
| Exact Mass | 218.126663 |
| PSA | 101.65000 |
| LogP | 0.50 |
| Vapor Pressure | 0.0±1.9 mmHg at 25°C |
| Refractive Index | 1.501 |
| Storage Conditions | Store at RT. |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H318 — Causes serious eye damage
Frequently Asked Questions
What is the CAS number of Boc-L-2,4-diaminobutyric acid?
The CAS number of Boc-L-2,4-diaminobutyric acid is 25691-37-6.
What are the molecular formula and molecular weight of Boc-L-2,4-diaminobutyric acid?
Boc-L-2,4-diaminobutyric acid has molecular formula C9H18N2O4 and molecular weight 218.250 g/mol.
Is Boc-L-2,4-diaminobutyric acid hazardous?
Boc-L-2,4-diaminobutyric acid has GHS signal word Danger and hazard statements H315 — Causes skin irritation; H318 — Causes serious eye damage.
What are the upstream and downstream products of Boc-L-2,4-diaminobutyric acid?
For Boc-L-2,4-diaminobutyric acid, Upstream Products: Nα-(tert-Butoxycarbonyl)-L-glutamine, Boc-Dab(Fmoc)-OH, Boc-L-asparagine; Downstream Products: tert-butyl N-[(3S)-2-oxopyrrolidin-3-yl]carbamate, tert-Butyl (2S)-4-amino-2-[(tert-butoxycarbonyl)amino]butanoate hydrochloride, Boc-Dab(Fmoc)-OH.
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-L-2,4-diaminobutyric acid (CAS 25691-37-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-31929-9 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.