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(R)-1-Boc-3-methylpiperazine

Also known as: (R)-4-Boc-2-methylpiperazine, (R)-4-N-Boc-2-methylpiperazine, (R)-tert-butyl 3-methylpiperazine-1-carboxylate, tert-butyl (3R)-3-methylpiperazine-1-carboxylate, (R)-1-Boc-3-methylpiperazine, (R)-4-Boc-2-Methylpiperazine, MFCD02683205

(R)-1-Boc-3-methylpiperazine (CAS 163765-44-4) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C10H20N2O2 and a molecular weight of 200.28 g/mol. Key properties include a melting point of 40-45 °C, a boiling point of 268.7±15.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 116.3±20.4 °C. It is classified under GHS with signal word Danger and hazard statements H315 — Causes skin irritation, H318 — Causes serious eye damage and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
163765-44-4
Jingsj CID
J-24202-4
Molecular Formula
C10H20N2O2
Molecular Weight
200.28 g/mol
Category
Organic Compounds
Last updated
8/21/2026

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Physicochemical Properties

Melting Point40-45 °C
Boiling Point268.7±15.0 °C at 760 mmHg
Density1.0±0.1 g/cm3
Flash Point116.3±20.4 °C
Exact Mass200.152481
PSA41.57000
LogP1.05
Vapor Pressure0.0±0.6 mmHg at 25°C
Refractive Index1.459

GHS Safety & Compliance

Corrosion / IrritantSignal word: Danger
  • H315 — Causes skin irritation
  • H318 — Causes serious eye damage
  • H335 — May cause respiratory irritation

Customs & Trade Information

HS Code2933599090
Summary2933599090. other compounds containing a pyrimidine ring (whether or not hydrogenated) or piperazine ring 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 (R)-1-Boc-3-methylpiperazine?

The CAS number of (R)-1-Boc-3-methylpiperazine is 163765-44-4.

What are the molecular formula and molecular weight of (R)-1-Boc-3-methylpiperazine?

(R)-1-Boc-3-methylpiperazine has molecular formula C10H20N2O2 and molecular weight 200.28 g/mol.

Is (R)-1-Boc-3-methylpiperazine hazardous?

(R)-1-Boc-3-methylpiperazine has GHS signal word Danger and hazard statements H315 — Causes skin irritation; H318 — Causes serious eye damage; H335 — May cause respiratory irritation.

What are the upstream and downstream products of (R)-1-Boc-3-methylpiperazine?

For (R)-1-Boc-3-methylpiperazine, Upstream Products: Di-tert-butyl dicarbonate, (R)-(-)-2-Methylpiperazine, 2-(tert-Butoxycarbonyloxyimino)-2-phenylacetonitrile; Downstream Products: (R)-1,2-Dimethylpiperazine.

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

Last updated:

How to cite: Jingsj. "(R)-1-Boc-3-methylpiperazine (CAS 163765-44-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-24202-4 (accessed 2026-11-09).

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