(2S)-2-{[(Benzyloxy)carbonyl]amino}butanoic acid

Also known as: Z-Abu-OH, Cbz-Abu-OH, Cbz-2-Abu-OH, Z-L-Abu-OH, Z-D-Abu-OH, Z-2-ABU-OH, Z-ABU(2)-OH, Nsc164666, (S)-2-(Benzyloxycarbonylamino)butyric acid, (S)-2-(CBZ-amino)butanoic acid, Benzyloxycarbonyl-L-2-aminobutyric acid

(2S)-2-{[(Benzyloxy)carbonyl]amino}butanoic acid (CAS 42918-86-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C12H15NO4 and a molecular weight of 237.25500 g/mol. Key properties include a boiling point of 215.2±23.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 83.9±22.6 °C. No supplier offers are currently listed; request a quote. Record last updated Nov 2, 2026.

CAS No.: 42918-86-5
Jingsj CID: J-1336926-1
Molecular Formula: C₁₂H₁₅NO₄
Molecular Weight: 237.25500 g/mol
Category: Organic Acids
Last updated: 11/2/2026

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Physicochemical Properties

Boiling Point	215.2±23.0 °C at 760 mmHg
Density	1.1±0.1 g/cm3
Flash Point	83.9±22.6 °C
Exact Mass	103.063332
PSA	75.63000
LogP	-0.15
Vapor Pressure	0.1±0.9 mmHg at 25°C
Refractive Index	1.462
Storage Conditions	Store at RT.

Customs & Trade Information

HS Code	2924299090
Summary	2924299090. other cyclic amides (including cyclic carbamates) and their derivatives; salts thereof. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%

Frequently Asked Questions

What is the CAS number of (2S)-2-{[(Benzyloxy)carbonyl]amino}butanoic acid?

The CAS number of (2S)-2-{[(Benzyloxy)carbonyl]amino}butanoic acid is 42918-86-5.

What are the molecular formula and molecular weight of (2S)-2-{[(Benzyloxy)carbonyl]amino}butanoic acid?

(2S)-2-{[(Benzyloxy)carbonyl]amino}butanoic acid has molecular formula C12H15NO4 and molecular weight 237.25500 g/mol.

What are the upstream and downstream products of (2S)-2-{[(Benzyloxy)carbonyl]amino}butanoic acid?

For (2S)-2-{[(Benzyloxy)carbonyl]amino}butanoic acid, Upstream Products: L(+)-2-Aminobutyric acid, L-Aspartic acid, N-Carbobenzoxy-L-serine β-lactone; Downstream Products: Z-L-α-aminobutyric acid N-hydroxysuccinimide ester.

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

Last updated: 11/2/2026

How to cite: Jingsj. "(2S)-2-{[(Benzyloxy)carbonyl]amino}butanoic acid (CAS 42918-86-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1336926-1 (accessed 2026-11-09).

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