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tert-butyl 4-(2-methoxy-2-oxoethylidene)piperidine-1-carboxylate

Also known as: 1-Piperidinecarboxylic acid, 4-(2-methoxy-2-oxoethylidene)-, 1,1-dimethylethyl ester, 4-(2-methoxy-2-oxoethylidene)-1-piperidinecarboxylic acid tert-butyl ester, Boc 4-Methoxycarbonylmethylene-piperidine, tert-butyl 4-(2-methoxy-2-oxoethylidene)-1-piperidinecarboxylate, tert-butyl4-(2-methoxy-2-oxoethylidene)pipcarboxylate, tert-butyl4-(2-methoxy-2-oxoethylidene)piperidine-1-carboxylate(WX191795)

tert-butyl 4-(2-methoxy-2-oxoethylidene)piperidine-1-carboxylate (CAS 169206-65-9) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C13H21NO4 and a molecular weight of 255.31000 g/mol. Key properties include a boiling point of 339.0±35.0 °C(Predicted) and a density of 1.150±0.06 g/cm3(Predicted). No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
169206-65-9
Jingsj CID
J-1554185-2
Molecular Formula
C13H21NO4
Molecular Weight
255.31000 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026
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Physicochemical Properties

Boiling Point339.0±35.0 °C(Predicted)
Density1.150±0.06 g/cm3(Predicted)
Exact Mass255.14700
PSA55.84000
LogP2.05460

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 tert-butyl 4-(2-methoxy-2-oxoethylidene)piperidine-1-carboxylate?

The CAS number of tert-butyl 4-(2-methoxy-2-oxoethylidene)piperidine-1-carboxylate is 169206-65-9.

What are the molecular formula and molecular weight of tert-butyl 4-(2-methoxy-2-oxoethylidene)piperidine-1-carboxylate?

tert-butyl 4-(2-methoxy-2-oxoethylidene)piperidine-1-carboxylate has molecular formula C13H21NO4 and molecular weight 255.31000 g/mol.

What are the upstream and downstream products of tert-butyl 4-(2-methoxy-2-oxoethylidene)piperidine-1-carboxylate?

For tert-butyl 4-(2-methoxy-2-oxoethylidene)piperidine-1-carboxylate, Upstream Products: Trimethyl phosphonoacetate, Di-tert-butyl dicarbonate, Methyl 2-(diethoxyphosphoryl)acetate; Downstream Products: tert-butyl 4-amino-4-(2-methoxy-2-oxoethyl)piperidine-1-carboxylate, tert-Butyl 4-(2-hydroxyethyl)piperidine-1-carboxylate, tert-butyl 4-(2-methoxy-2-oxoethyl)-4-(nitromethyl)piperidine-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. "tert-butyl 4-(2-methoxy-2-oxoethylidene)piperidine-1-carboxylate (CAS 169206-65-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1554185-2 (accessed 2026-11-09).

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