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1-(tert-Butoxycarbonyl)-4-methylpiperidine-4-carboxylic acid

Also known as: 1-Boc-4-methylpiperidine-4-carboxylic acid, 1-Boc-4-methyl-4-piperidinecarboxylic acid, N-Boc-4-methylpiperidine-4-carboxylic acid, N-tert-butoxycarbonyl-4-methylpiperidine-4-carboxylic acid, 1-tert-butyl 4-methyl piperidine-1,4-dicarboxylate, 4-methyl-1-[(2-methylpropan-2-yl)oxycarbonyl]piperidine-4-carboxylic acid, MFCD02179132

1-(tert-Butoxycarbonyl)-4-methylpiperidine-4-carboxylic acid (CAS 189321-63-9) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C12H21NO4 and a molecular weight of 243.299 g/mol. Key properties include a melting point of 154 °C, a boiling point of 354.3±35.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 168.1±25.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
189321-63-9
Jingsj CID
J-1353470-8
Molecular Formula
C12H21NO4
Molecular Weight
243.299 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026
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Physicochemical Properties

Melting Point154 °C
Boiling Point354.3±35.0 °C at 760 mmHg
Density1.1±0.1 g/cm3
Flash Point168.1±25.9 °C
Exact Mass243.147064
PSA66.84000
LogP1.58
Vapor Pressure0.0±1.7 mmHg at 25°C
Refractive Index1.489

Customs & Trade Information

HS Code2933399090
Summary2933399090. other compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of 1-(tert-Butoxycarbonyl)-4-methylpiperidine-4-carboxylic acid?

The CAS number of 1-(tert-Butoxycarbonyl)-4-methylpiperidine-4-carboxylic acid is 189321-63-9.

What are the molecular formula and molecular weight of 1-(tert-Butoxycarbonyl)-4-methylpiperidine-4-carboxylic acid?

1-(tert-Butoxycarbonyl)-4-methylpiperidine-4-carboxylic acid has molecular formula C12H21NO4 and molecular weight 243.299 g/mol.

What are the upstream and downstream products of 1-(tert-Butoxycarbonyl)-4-methylpiperidine-4-carboxylic acid?

For 1-(tert-Butoxycarbonyl)-4-methylpiperidine-4-carboxylic acid, Upstream Products: Ethyl N-Boc-4-methylpiperidine-4-carboxylate, 1-Boc-4-methylpiperidine-4-carboxylic acid methyl ester, 1-(tert-Butoxycarbonyl)piperidine-4-carboxylic acid; Downstream Products: 4-Methyl-4-piperidinecarboxylic acid hydrochloride, 1-Boc-4-methylpiperidine-4-carboxamide, tert-Butyl 4-amino-4-methylpiperidine-1-carboxylate.

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

Last updated:

How to cite: Jingsj. "1-(tert-Butoxycarbonyl)-4-methylpiperidine-4-carboxylic acid (CAS 189321-63-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1353470-8 (accessed 2026-11-09).

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