Phenacetin-ethoxy-1-13C

Also known as: Acetamide, N-[4-(ethoxy-1-13C)phenyl]- (9CI), N-(4-Ethoxy-1-13C-phenyl)acetamide, p-Acetophenetidide-ethoxy-1-13C, ACETOPHENETIDIN (ETHOXY-1-13C), N-[4-ETHOXYPHENYL]ACETAMIDE (ETHOXY-1-13C), Phenacetin-13C1 (ethoxy-1-13C), N-4-((1-13C)Ethoxy)phenylacetamide, MFCD00083951, PHENACETIN-ETHOXY-1-13C, 98 ATOM % 13C, n-(4-ethoxy-1-13c-phenyl)acetamide, phenacetin-13c1(ethoxy-1-13c)

Phenacetin-ethoxy-1-13C (CAS 72156-72-0) is a compound in the Ethers category listed in the Jingsj chemical database. It has the molecular formula C10H13NO2 and a molecular weight of 180.20800 g/mol. Key properties include a melting point of 134-136ºC(lit.) and a density of 1.099g/cm3. It is classified under GHS with signal word Danger and hazard statements H302 — Harmful if swallowed and H350 — May cause cancer. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 72156-72-0
Jingsj CID: J-1110267-3
Molecular Formula: C₁₀H₁₃NO₂
Molecular Weight: 180.20800 g/mol
Category: Ethers
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	134-136ºC(lit.)
Density	1.099g/cm3
Exact Mass	180.09800
PSA	38.33000
LogP	2.11670
Refractive Index	1.548

GHS Safety & Compliance

Irritant / Health HazardSignal word: Danger

H302 — Harmful if swallowed
H350 — May cause cancer

Activity & Biological Data

Additional Information	[1]. Russak EM, et al. Impact of Deuterium Substitution on the Pharmacokinetics of Pharmaceuticals. Ann Pharmacother. 2019 Feb;53(2):211-216. [2]. Chandrasekharan NV, et al. COX-3, a cyclooxygenase-1 variant inhibited by acetaminophen and other analgesic/antipyretic drugs: cloning, structure, and expression. Proc Natl Acad Sci U S A. 2002 Oct 15;99(21):13926-31. [3]. Xiao-Meng He, et al. Effects of long-term smoking on the activity and mRNA expression of CYP isozymes in rats. J Thorac Dis. 2015 Oct 7(10): 1725–1731. [4]. Na Gao, et al. Inhibition of Baicalin on Metabolism of Phenacetin, a Probe of CYP1A2, in Human Liver Microsomes and in Rats. PLoS One. 2014 9(2): e89752.

Additional Information

[1]. Russak EM, et al. Impact of Deuterium Substitution on the Pharmacokinetics of Pharmaceuticals. Ann Pharmacother. 2019 Feb;53(2):211-216. [2]. Chandrasekharan NV, et al. COX-3, a cyclooxygenase-1 variant inhibited by acetaminophen and other analgesic/antipyretic drugs: cloning, structure, and expression. Proc Natl Acad Sci U S A. 2002 Oct 15;99(21):13926-31. [3]. Xiao-Meng He, et al. Effects of long-term smoking on the activity and mRNA expression of CYP isozymes in rats. J Thorac Dis. 2015 Oct 7(10): 1725–1731. [4]. Na Gao, et al. Inhibition of Baicalin on Metabolism of Phenacetin, a Probe of CYP1A2, in Human Liver Microsomes and in Rats. PLoS One. 2014 9(2): e89752.

Frequently Asked Questions

What is the CAS number of Phenacetin-ethoxy-1-13C?

The CAS number of Phenacetin-ethoxy-1-13C is 72156-72-0.

What are the molecular formula and molecular weight of Phenacetin-ethoxy-1-13C?

Phenacetin-ethoxy-1-13C has molecular formula C10H13NO2 and molecular weight 180.20800 g/mol.

Is Phenacetin-ethoxy-1-13C hazardous?

Phenacetin-ethoxy-1-13C has GHS signal word Danger and hazard statements H302 — Harmful if swallowed; H350 — May cause cancer.

What are the upstream and downstream products of Phenacetin-ethoxy-1-13C?

For Phenacetin-ethoxy-1-13C, Upstream Products: Iodoethane-1-13C, Acetaminophen.

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. "Phenacetin-ethoxy-1-13C (CAS 72156-72-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1110267-3 (accessed 2026-11-09).

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