Cimetidine CAS#51481-61-9

Effective Gastric Acid Inhibition: As an H2 receptor antagonist, cimetidine significantly reduces gastric acid secretion and lowers acidity triggered by food, histamine, or pentagastrin.


Gastroprotective and Anti-Ulcer Activity: It provides preventive and protective effects against corrosive gastritis, and is effective in the treatment of gastric ulcers, duodenal ulcers, and upper gastrointestinal bleeding.


Multi-Functional Therapeutic Benefits: The product exhibits anti-androgen activity, offering therapeutic value in the management of conditions such as hirsutism.


Immune Modulation and Anti-Tumor Support: It can enhance immune response by reducing immunosuppressive cell activity, helping to inhibit tumor metastasis and prolong survival.


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Product Description

Product Description of Cimetidine CAS#51481-61-9

Cimetidine is an H2 receptor antagonist that suppresses gastric acid secretion and lowers gastric acidity. It protects against chemically induced gastritis and relieves stress gastric ulcers and upper gastrointestinal hemorrhage.
It possesses anti-androgenic properties for hirsutism treatment, and can modulate immunity to restrain tumor metastasis. Clinically, it is commonly used for gastric and duodenal ulcers as well as upper digestive tract bleeding.


Product Application of Cimetidine CAS#51481-61-9

Launched in 1975, cimetidine is the first selective H2 receptor antagonist for peptic ulcer therapy. It potently inhibits basal and stimulated gastric acid secretion to relieve acid-related gastrointestinal diseases.
It protects against chemical gastritis and treats stress ulcers and upper gastrointestinal bleeding, widely applied for gastric ulcers, duodenal ulcers, esophagitis and Zollinger–Ellison syndrome.
It also acts as an I1 imidazoline receptor agonist, and can suppress tumor cell adhesion and metastasis by reducing endothelial selectin expression.


Product Information

Parameters

Melting point139-144°C
Boiling point476.2±55.0 °C(Predicted)
density1.2583 (rough estimate)
refractive index1.5700 (estimate)
storage temp.2-8°C
solubilitySlightly soluble in water, soluble in ethanol (96 per cent), practically insoluble in methylene chloride. It dissolves in dilute mineral acids.
formSolid
pkapKa 6.80 (Uncertain)
colorWhite to Off-White
Water Solubility0.5 g/100 mL at 20 ºC
Merck142279
InChIKeyAQIXAKUUQRKLND-UHFFFAOYSA-N
CAS DataBase Reference51481-61-9(CAS DataBase Reference)
NIST Chemistry ReferenceCimetidine(51481-61-9)
IARC3 (Vol. 50) 1990
EPA Substance Registry SystemGuanidine, N-cyano-N'-methyl-N''-[2-[[(5-methyl-1H-imidazol-4-yl)methyl]thio]ethyl]- (51481-61-9)
Hazard CodesT,Xn
Risk Statements60-42/43-36/37/38-20/22
Safety Statements53-26-36/37/39-45-36-22
WGK Germany3
RTECSMF0035500
HS Code29339900
Hazardous Substances Data51481-61-9(Hazardous Substances Data)
ToxicityLD50 in mice, rats (mg/kg): 2600, 5000 orally; 150, 106 i.v.; 470, 650 i.p. (Brimblecombe)


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Q1: Is Huafeng Chemical a manufacturer or a trader?
A: We are a professional service provider specializing in chemical foreign trade. Rather than being limited to the products of a single factory, we leverage the chemical industry cluster in Shandong Province to integrate production resources from multiple high-quality manufacturers. This allows us to offer a wide range of sourcing options—covering various product categories and origins—instead of simply pushing a single product. Furthermore, our core competitiveness lies in our professional foreign trade services (covering documentation, logistics, and regulatory compliance), ensuring a smooth and worry-free procurement process for you.


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Q3: Do you have experience serving clients in Russian-speaking regions?
A: Yes. We place great importance on the Russian-speaking market; our team includes Russian-speaking business professionals who are well-versed in the import regulations of Russia and the Eurasian Economic Union (EAEU). We understand the importance of EAC certification to clients in these regions and can assist with related compliance inquiries. We have established connections with chemical traders across various CIS countries and have gained valuable experience in specialized packaging and temperature-controlled shipping designed to withstand harsh local winter conditions.


Q4: How do you guarantee product quality?
A: We implement a strict supplier qualification and periodic audit system. A Certificate of Analysis (COA)—issued by the original manufacturer—is provided with every shipment. We also welcome pre-shipment inspections conducted by internationally recognized third-party agencies such as SGS, BV, or ITS. Should the test results fail to meet the standards specified in the contract, you have the right to reject the goods or request a replacement.

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