5-Chloro-1,3-dihydro-1-(4-piperidinyl)-2H-benzimidazol-2-one

Also known as: 5-Chloro-1-(4-piperidinyl)-2-benzimidazolinone, 5-Chloro-1-(4-piperidyl)-2-benzimidazolinone, 5-Chloro-1-(piperidin-4-yl)-1H-benzo[d]imidazol-2(3H)-one, 5-Chloro-1-(4-piperidinyl)-1,3-dihydro-2H-benzimidazol-2-one, Domperidone impurity A, Domperidone EP impurity A, R 29676, 1-(4-Piperidinyl)-1,3-dihydro-5-chlorobenzimidazolone

5-Chloro-1,3-dihydro-1-(4-piperidinyl)-2H-benzimidazol-2-one (CAS 53786-28-0) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C12H14ClN3O and a molecular weight of 251.71 g/mol. Key properties include a melting point of 228-231 °C(lit.) and a density of 1.3±0.1 g/cm3. 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. It is listed by 1 supplier, from 2.04 to 3.50 CNY. Record last updated Aug 21, 2026.

CAS No.: 53786-28-0
Jingsj CID: J-1100934-8
Molecular Formula: C₁₂H₁₄ClN₃O
Molecular Weight: 251.71 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Supplier	Purity / Pack	Base Price	Unit Price	Origin
Maikuo Made to Order	98% 500g	¥1,020.00	$0.31 /gBest ¥2.04/g CNY	CN China MOQ 500g	View Product
Maikuo Made to Order	98% 250g	¥680.00	$0.41 /g ¥2.72/g CNY	CN China MOQ 250g	View Product
Maikuo Made to Order	98% 100g	¥350.00	$0.52 /g ¥3.50/g CNY	CN China MOQ 100g	View Product

Physicochemical Properties

Melting Point	228-231 °C(lit.)
Density	1.3±0.1 g/cm3
Exact Mass	251.082535
PSA	49.82000
LogP	2.00
Refractive Index	1.606
SMILES	C1CNCCC1N2C3=C(C=C(C=C3)Cl)NC2=O
InChIKey	DOAYWDKFDPSTSV-UHFFFAOYSA-N
InChI	1S/C12H14ClN3O/c13-8-1-2-11-10(7-8)15-12(17)16(11)9-3-5-14-6-4-9/h1-2,7,9,14H,3-6H2,(H,15,17)

GHS Safety & Compliance

IrritantSignal word: Warning

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

Customs & Trade Information

HS Code	2933990090
Summary	2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. 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 5-Chloro-1,3-dihydro-1-(4-piperidinyl)-2H-benzimidazol-2-one?

The CAS number of 5-Chloro-1,3-dihydro-1-(4-piperidinyl)-2H-benzimidazol-2-one is 53786-28-0.

What are the molecular formula and molecular weight of 5-Chloro-1,3-dihydro-1-(4-piperidinyl)-2H-benzimidazol-2-one?

5-Chloro-1,3-dihydro-1-(4-piperidinyl)-2H-benzimidazol-2-one has molecular formula C12H14ClN3O and molecular weight 251.71 g/mol.

Which suppliers offer 5-Chloro-1,3-dihydro-1-(4-piperidinyl)-2H-benzimidazol-2-one?

1 supplier(s) listed; reference unit price ¥2.04–3.50 /g.

Is 5-Chloro-1,3-dihydro-1-(4-piperidinyl)-2H-benzimidazol-2-one hazardous?

5-Chloro-1,3-dihydro-1-(4-piperidinyl)-2H-benzimidazol-2-one has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.

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. "5-Chloro-1,3-dihydro-1-(4-piperidinyl)-2H-benzimidazol-2-one (CAS 53786-28-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1100934-8 (accessed 2026-11-06).

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