tert-Butyl (2R)-2-methylpyrrolidine-1-carboxylate

Also known as: (R)-1-Boc-2-methylpyrrolidine, (R)-tert-Butyl 2-methylpyrrolidine-1-carboxylate, tert-Butyl (R)-2-methylpyrrolidine-1-carboxylate, (R)-2-Methylpyrrolidine, N-BOC protected, (R)-N-Boc-2-methylpyrrolidine, 1-Pyrrolidinecarboxylic acid, 2-methyl-, 1,1-dimethylethyl ester, (2R)-, 2-Methyl-2-propanyl (2R)-2-methyl-1-pyrrolidinecarboxylate, tert-Butyl (2R)-2-methylpyrrolidine-1-carboxylate

tert-Butyl (2R)-2-methylpyrrolidine-1-carboxylate (CAS 157007-54-0) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C10H19NO2 and a molecular weight of 185.263 g/mol. Key properties include a boiling point of 234.0±9.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 95.3±18.7 °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.: 157007-54-0
Jingsj CID: J-1458692-6
Molecular Formula: C₁₀H₁₉NO₂
Molecular Weight: 185.263 g/mol
Category: Aliphatic Hydrocarbons
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	234.0±9.0 °C at 760 mmHg
Density	1.0±0.1 g/cm3
Flash Point	95.3±18.7 °C
Exact Mass	185.141586
PSA	29.54000
LogP	1.99
Vapor Pressure	0.1±0.5 mmHg at 25°C
Refractive Index	1.463

GHS Safety & Compliance

IrritantSignal word: Warning

H315 — Causes skin irritation
H319 — Causes serious eye irritation
H335 — May cause respiratory irritation

Frequently Asked Questions

What is the CAS number of tert-Butyl (2R)-2-methylpyrrolidine-1-carboxylate?

The CAS number of tert-Butyl (2R)-2-methylpyrrolidine-1-carboxylate is 157007-54-0.

What are the molecular formula and molecular weight of tert-Butyl (2R)-2-methylpyrrolidine-1-carboxylate?

tert-Butyl (2R)-2-methylpyrrolidine-1-carboxylate has molecular formula C10H19NO2 and molecular weight 185.263 g/mol.

Is tert-Butyl (2R)-2-methylpyrrolidine-1-carboxylate hazardous?

tert-Butyl (2R)-2-methylpyrrolidine-1-carboxylate 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 tert-Butyl (2R)-2-methylpyrrolidine-1-carboxylate?

For tert-Butyl (2R)-2-methylpyrrolidine-1-carboxylate, Upstream Products: N-Boc-L-Prolinol, tert-Butyl pyrrolidine-1-carboxylate, Dimethyl sulfate; Downstream Products: ABT-239, (2R)-1-but-3-yn-1-yl-2-methylpyrrolidine.

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

Last updated: 8/21/2026

How to cite: Jingsj. "tert-Butyl (2R)-2-methylpyrrolidine-1-carboxylate (CAS 157007-54-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1458692-6 (accessed 2026-11-09).

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