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N-Cyano-N-[2-(5-methylimidazole-4-methylthio)ethyl]-S-methyl isothiourea

CAS No.
52378-40-2
Chemical Name:
N-Cyano-N-[2-(5-methylimidazole-4-methylthio)ethyl]-S-methyl isothiourea
Synonyms
Einecs 257-889-5;Cimetidine EP IMP A;Cimetidine impurity A;Cimetidine EP Impurity A;Cimetidine Impurity A(EP);3-Cyano-2-methyl-1-[2-[[(5-methyl-1;Cimetidine Hydrochloride Impurity A;Cimetidine Hydrochloride EP Impurity A;Cimetidine Impurity 1(Cimetidine EP Impurity A);N-Cyano-N-[2-(5-methylimidazole-4-methylthio)ethyl]-S-methyl...
CBNumber:
CB3875377
Molecular Formula:
C10H15N5S2
Molecular Weight:
269.39
MDL Number:
MFCD09751289
MOL File:
52378-40-2.mol
Last updated:2026-05-28 01:16:13

N-Cyano-N-[2-(5-methylimidazole-4-methylthio)ethyl]-S-methyl isothiourea Properties

Melting point 148-150℃
Boiling point 501.5±60.0 °C(Predicted)
Density 1.29±0.1 g/cm3(Predicted)
storage temp. Amber Vial, -20°C Freezer, Under inert atmosphere
solubility DMSO (Slightly), Methanol (Slightly)
form Solid
pka 14.11±0.10(Predicted)
color Yellow
Stability Light Sensitive
Major Application pharmaceutical
InChI 1S/C10H15N5S2/c1-8-9(15-7-14-8)5-17-4-3-12-10(16-2)13-6-11/h7H,3-5H2,1-2H3,(H,12,13)(H,14,15)
InChIKey WSUNDBVVUCLXTG-UHFFFAOYSA-N
SMILES S(CCN=C(SC)NC#N)Cc1[nH]cnc1C
UNSPSC Code 41116107
NACRES NA.24

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)Health Hazard (GHS08)
GHS07,GHS08
Signal word  Warning
Hazard statements  H334-H302+H312+H332-H317
Precautionary statements  P261-P285-P304+P341-P342+P311-P501-P261-P272-P280-P302+P352-P333+P313-P321-P363-P501
WGK Germany  WGK 3
Storage Class 11 - Combustible Solids
REACH Registrations Active

N-Cyano-N-[2-(5-methylimidazole-4-methylthio)ethyl]-S-methyl isothiourea price

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich PHR2220 Cimetidine Impurity A Pharmaceutical Secondary Standard; Certified Reference Material 52378-40-2 100mg $464 2026-04-30 Buy
Usbiological 458515 Cimetidine EP Impurity A ≥97% 52378-40-2 50mg $329 2026-06-03 Buy
Usbiological 458515 Cimetidine EP Impurity A ≥97% 52378-40-2 100mg $463 2026-06-03 Buy
Usbiological 458515 Cimetidine EP Impurity A ≥97% 52378-40-2 250mg $655 2026-06-03 Buy
TRC TRC-C981850-25MG N-Cyano-N’-[2-[(4-methyl-5-imidazolyl)methylthio]ethyl]-S-methylisothiourea >95%(HPLC) 52378-40-2 25mg $201 2026-06-03 Buy
Product number Packaging Price Buy
PHR2220 100mg $464 Buy
458515 50mg $329 Buy
458515 100mg $463 Buy
458515 250mg $655 Buy
TRC-C981850-25MG 25mg $201 Buy

N-Cyano-N-[2-(5-methylimidazole-4-methylthio)ethyl]-S-methyl isothiourea Chemical Properties, Uses, Production

Uses

N-Cyano-N’-[2-[(4-methyl-5-imidazolyl)methylthio]ethyl]-S-methylisothiourea (Cimetidine EP Impurity A) is a Cimetidine (C441650) related impurity. Cimetidine (C441650), a competitive histamine H2-receptor antagonist which inhibits gastric acid secretion and reduces pepsin output. Also used in the preparation of histamine H2 receptor antagonists.

N-Cyano-N-[2-(5-methylimidazole-4-methylthio)ethyl]-S-methyl isothiourea Preparation Products And Raw materials

Raw materials

Preparation Products

Global Suppliers ( 97)
Supplier Tel Email Country ProdList Advantage
S.Z. PhyStandard Bio-Tech. Co., Ltd. 0755-4000505016 13380397412 3001272453@qq.com China 5000 50
Zhengzhou ALFA Chemical Co., Ltd. 0371-53732842 15981811963 1758257485@qq.com China 949 56
Shandong Boluoda Biological Technology Co., Ltd. 0531-68651502 2310993908@qq.com China 3228 58
Shanghai Kewel Chemical Co., Ltd. 021-64609169 18901607656 greensnown@163.com China 9883 50
Jiangsu Aikon Biopharmaceutical R&D co.,Ltd. 025-66028182 17714375163 yftan@aikonchem.com China 16674 50
Nanjing XiZe Biotechnology CO., Ltd. 025-66023220 15250997978 1511893459@qq.com China 4777 55
Hubei widely chemical technology Co., Ltd. 027-83991130 18627774460 1718093273@QQ.COM China 1617 58
Amadis Chemical Company Limited 571-89925085 sales@amadischem.com China 131885 58
Guangzhou Kafen Biotech Co.,Ltd 18029243487 2355327168 gy@yccreate.com China 4738 55
Hubei Yangxin Medical Technology Co., Ltd. 15374522761 3003392093@yongstandards.com China 9995 55

View Latest Price from N-Cyano-N-[2-(5-methylimidazole-4-methylthio)ethyl]-S-methyl isothiourea manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
N-Cyano-N-[2-(5-methylimidazole-4-methylthio)ethyl]-S-methyl isothiourea pictures 2025-06-20 N-Cyano-N-[2-(5-methylimidazole-4-methylthio)ethyl]-S-methyl isothiourea
52378-40-2
1kg 99% 20tons Hebei Yanxi Chemical Co., Ltd.
N-Cyano-S-methyl-N''-[2-(4-methyl-5-imidazolyl)-methylthioethyl]- isothioure 2-Methyl-1-cyano-3-[2-[[(5-methyl-1H-imidazol-4-yl)methyl]thio]ethyl]isothiourea N1-[2-[(5-Methyl-1H-imidazole-4-yl)methylthio]ethyl]-N2-cyano(methylthio)methanamidine Einecs 257-889-5 N-Cyano-N-[2-(5-MethyliMidazole-4-Methylthio)ethyl]-S-Methyl isothiourea Monohydrate N-Cyano-N'-[2-[(4-methyl-5-imidazolyl)methylthio]ethyl]-S-methylisothiourea N-Cyano-N'-[2-[[(5-methyl-4-imidazolyl)methyl]thio]ethyl]-S-methylisothiourea S-Methyl-N-cyano-N'-[2-[(5-methyl-1H-imidazol-4-yl)methylthio]ethyl]isothiourea N-Cyano-N-[2-(5-methylimidazole-4-methylthio)ethyl]-S-methyl isothiourea 1-cyano-2-methyl-3-[2-[[(5-methyl-1H-imidazol-4-yl)methyl]thio]ethyl]isothiourea 1-CYANO-2-METHYL-1-[2-(5-METHYLIMIDAZOL-4-YL-METHYLTHIO)ETHYL]ISO-THIO UREA N-CYANO-N(2-((5-METHYL-1H-IMIDAZOL-4-YL)METHYL)THYL)THIO)ETHYL)CARBAMIMIDOTHIOIC ACID METHYL ESTER N-Cyano-N'-[2-[[(5-methyl-1H-imidazol-4-yl)methyl]thio]ethyl]carbamimidothioic acid methyl ester N-Cyano-N'-2-[(5-methyl-1H-imidazol-4-yl)methylthio]ethyl-S-methylisothiourea 3-CYANO-2-METHYL-1-[2-[[(5-METHYL-1H-IMIDAZOL-4-YL)METHYL]SULPHANYL]ETHYL]ISOTHIOUREA Cimetidine impurity A Cimetidine EP Impurity A Cimetidine Impurity A(EP) Cimetidine Impurity 1(Cimetidine EP Impurity A) Cimetidine EP IMP A Carbamimidothioic acid,N-cyano-N'-[2-[[(4-methyl-1H-imidazol-5-yl)methyl]thio]ethyl]-, methyl ester Cimetidine impurity 1/Cimetidine EP Impurity A/Cimetidine Methylsulfanyl Analog /Methyl 3-cyano-1-[2-[[(5-methyl-1H-imidazol-4-yl)methyl]sulfanyl]ethyl] carbamimidothioate 3-Cyano-2-methyl-1-[2-[[(5-methyl-1 (E)-methyl N'-cyano-N-(2-(((5-methyl-1H-imidazol-4-yl)methyl)thio)ethyl)carbamimidothioate methyl N-cyano-N'-[2-[(5-methyl-1H-imidazol-4-yl)methylsulfanyl]ethyl]carbamimidothioate N-Cyano-N'-[2-(4-methyl-5-imidazolyl)methylthio]etheyl -S-methylisothiourea N-Cyano-N-[2-(5-methylimidazole-4-methylthio)ethyl]-S-methyl... Cimetidine EP Impurity AQ: What is Cimetidine EP Impurity A Q: What is the CAS Number of Cimetidine EP Impurity A Q: What is the storage condition of Cimetidine EP Impurity A Q: What are the applications of Cimetidine EP Impurity A Methyl 3-cyano-1-[2-[[(5-methyl-1H-imidazol-4-yl)methyl]sulfanyl]ethyl] carbamimidothioate Cimetidine Hydrochloride Impurity A Cimetidine Hydrochloride EP Impurity A methyl N'-cyano-N-(2-(((5-methyl-1H-imidazol-4-yl)methyl)thio)ethyl)carbamimidothioate N-Cyano-N′-[2-[[(4-methyl-1H-imidazol-5-yl)methyl]thio]ethyl]-,Carbamimidothioic acid methyl ester (Cimetidine Impurity) N-Cyano-N’-[2-[(4-methyl-5-imidazolyl)methylthio]ethyl]-S-methylisothiourea 52378-40-2 C10H15N5S2 C10H15N6S2H2O