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N-(tert-Butoxycarbonyl)-L-citrulline

Also known as: Boc-Cit-OH, Boc-L-Cit-OH, (S)-2-((tert-Butoxycarbonyl)amino)-5-ureidopentanoic acid, (2S)-5-(carbamoylamino)-2-[(2-methylpropan-2-yl)oxycarbonylamino]pentanoic acid, N-ALPHA-T-BUTOXYCARBONYL-L-CITRULLINE, N-Carbamoyl-N-{[(2-methyl-2-propanyl)oxy]carbonyl}-L-ornithine, L-Ornithine, N-(aminocarbonyl)-N-[(1,1-dimethylethoxy)carbonyl]-

N-(tert-Butoxycarbonyl)-L-citrulline (CAS 45234-13-7) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C11H21N3O5 and a molecular weight of 275.302 g/mol. Key properties include a melting point of 60 ℃, a boiling point of 483.0±45.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 245.9±28.7 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
45234-13-7
Jingsj CID
J-1012408-0
Molecular Formula
C11H21N3O5
Molecular Weight
275.302 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point60 ℃
Boiling Point483.0±45.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point245.9±28.7 °C
Exact Mass275.148132
PSA130.75000
LogP0.25
Vapor Pressure0.0±2.6 mmHg at 25°C
Refractive Index1.502
Storage Conditions2-8°C

GHS Safety & Compliance

IrritantSignal word: Warning
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation

Customs & Trade Information

HS Code2924199090
Summary2924199090. other acyclic amides (including acyclic 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 N-(tert-Butoxycarbonyl)-L-citrulline?

The CAS number of N-(tert-Butoxycarbonyl)-L-citrulline is 45234-13-7.

What are the molecular formula and molecular weight of N-(tert-Butoxycarbonyl)-L-citrulline?

N-(tert-Butoxycarbonyl)-L-citrulline has molecular formula C11H21N3O5 and molecular weight 275.302 g/mol.

Is N-(tert-Butoxycarbonyl)-L-citrulline hazardous?

N-(tert-Butoxycarbonyl)-L-citrulline has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.

What are the upstream and downstream products of N-(tert-Butoxycarbonyl)-L-citrulline?

For N-(tert-Butoxycarbonyl)-L-citrulline, Upstream Products: Di-tert-butyl dicarbonate, L-Citrulline.

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

Last updated:

How to cite: Jingsj. "N-(tert-Butoxycarbonyl)-L-citrulline (CAS 45234-13-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1012408-0 (accessed 2026-11-09).

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