Product details
Bulk supply and Contract manufacturing of Fine Chemicals,Pharmaceutical Intermediates,APIs from kilos to tons


  • CAS:


  • Synonym:

    Intermediate of Imiquimod


Product Name: 4-Hydroxyquinoline
Synonym: 4-Quinolinol; Quinolin-4-ol; 4-hydroxy-quinolin; Intermediate of Imiquimod
Cas No.: 611-36-9
Formula: C9H7NO
MW: 145.16
EINECS No.: 210-268-2

Density: 1.3±0.1 g/cm3
Boiling point: 313.0±15.0 °C at 760 mmHg
Melting point: 200-202 °C(lit.)
Flash point: 143.1±20.4 °C
Refractive index: 1.691
HS Code: 2933490090
Tax refund rate: 13%
UN No.: 2245
Hazard class: 3 categories 
Packing level: Class III
Items of Analysis Standard of Analysis Test Results
IR Conform to IR Standard Conforms
Appearance Buff to off-white powder Off-white powder
Purity ≥98.5% 98.98%
Melting Point 199 ~206 °C 202.5~205.3°C
Moisture <0.5% 0.18%
Assay by Titrimetry
(on anhydrous basis)
≥98.0% 98.7%
Conclusion Conforms to Factory Standard
4-Hydroxyquinolineis a hydroxylated quinoline derivative with antimicrobial activity. 4-Hydroxyquinoline showed growth-inhibitory effects against intestinal bacteria. 4-Hydroxyquinoline act as sacrificial scavengers of the photogenerated oxygen species and has been shown to prevent the photodegradation of riboflavin.
Intermediate of Imiquimod.
25 kg/barrel, can also be packaged according to customer requirements. 
Store in a cool, ventilated warehouse. 
Keep away from fire and heat. 
The temperature should not exceed 37 °C. 

With strong technical accumulation and innovative research and development capabilities, he is good at various types of chemical reactions such as hydrogenation, nitration, Suzuki coupling, cyanation, diazotization, bromination, wittig reaction, Grignard reaction, redox reaction and ultra-low temperature reaction.We are specialists in chiral chemistry using both chemocatalysis and biocatalysis technologies, but also have practical operating experience over a wide range of modern synthetic reactions.The company's production base is equipped with enamel reactors from 50L to 5000L, stainless steel ultra-low temperature reactors and conventional separation and drying equipment.Our company has a 2000 square meter R&D center. The company's production base is mainly located in Liaocheng City, Shandong Province, Yuncheng City, Shanxi Province.Since the establishment of the company, it has established good and stable cooperative relations with many domestic and foreign pharmaceutical companies.

Are you looking for China or India manufacturers of 4-Hydroxyquinoline CAS:611-36-9, Intermediate of Imiquimod factory or Intermediate of Imiquimod supplier? Where can buy 4-hydroxy-quinolin or if you want to know the price market of 4-hydroxy-quinolin? Welcome to contact us for 4-Hydroxyquinoline COA or MSDS.

Laboratory in Ningbo
Our company's R&D company, Ningbo Gino Chemical Co., Ltd. was established in December 2011. we have several fume hoods and kilogram laboratory, and have purchased 20L, 50L reactors and as a preliminary pilot manufacturing of the products. At the same time, We mobilized external resources to establish a pilot facility in Henan Zhumadian and Anhui Anqing, and cooperating with Shandong Zibo and Jiangsu Changzhou factories as a large production facility for our products.

Factory in Shanxi Province
At the end of 2017, We invested workshop in Xinjiang County Longzhou Chemical Co., Ltd., Xinjiang County Coal Mine Park, Yuncheng, Shanxi. The first phase of the reactors were 30* 2000L~5000L, The contract output value is 50 million annually, factory has passed the audit from public listed company domestic and abroad.

Factory in Shandong Province
The production base of liquid rectification chemical products located in Liaocheng, Shandong Province is the main outsourcing production base of our company. The products are sold to leading enterprises and listed companies in the carcass industry for many years. The production, quality and service are stable, delivery is timely, and some individual products are covering 90% of the market.

Factory in Henan Province
In year 2020, We invested workshop in Henan province, the workshop consists of 50*2000L~5000L reactors, The types of reactions that can be manufacturer there are: bromination, cyanidation, and conventional reactions.

Disclaimer: Certain products are for research use only. Not for diagnostic or therapeutic use. Not for human use. INNOPHARMCHEM does not sell to individuals. INNOPHARMCHEM does not warrant that the use or sale of the products delivered under will not infringe the claims of any China or other patents covering the product itself or the use thereof in combination with other products or the operation of any process.