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Phenformin

CAS No.
114-86-3
Chemical Name:
Phenformin
Synonyms
pbi;phenethylbiguanide;Phenformine;PHENFORMIN HCL;N-Phenethylbiguanide;w32;Pedg;W 32;Dipar;dbcomb
CBNumber:
CB6700560
Molecular Formula:
C10H15N5
Molecular Weight:
205.26
MDL Number:
MFCD00242966
MOL File:
114-86-3.mol
MSDS File:
SDS
Last updated:2026-01-05 11:31:08
Product description Number Pack Size Price
Phenformin 288461 250g $382
N-Phenethylbiguanide P296055 100mg $50
Phenformin M819 1g $154
N-Phenethylbiguanide OR471153 5g $350
N-Phenethylbiguanide 3641-1-04 5G $415
More product size

Phenformin Properties

Melting point 176.5 °C
Boiling point 333.94°C (rough estimate)
Density 1.0541 (rough estimate)
refractive index 1.6380 (estimate)
storage temp. RT, protect from light
pka pKa 3.1/12.9±0.01(H2O,t =25,I>0.1) (Uncertain)
Appearance White to off-white Solid
InChI InChI=1S/C10H15N5/c11-9(12)15-10(13)14-7-6-8-4-2-1-3-5-8/h1-5H,6-7H2,(H6,11,12,13,14,15)
InChIKey ICFJFFQQTFMIBG-UHFFFAOYSA-N
SMILES C(=N)(NCCC1=CC=CC=C1)NC(=N)N
Toxicology and Carcinogenesis Bioassay of Phenformin for Possible Carcinogenicity (CASRN 114-86-3)
CAS DataBase Reference 114-86-3(CAS DataBase Reference)
EWG's Food Scores 1
FDA UNII DD5K7529CE
ATC code A10BA01
NIST Chemistry Reference Imidodicarbonimidic diamide, n-(2-phenylethyl)-(114-86-3)

SAFETY

Risk and Safety Statements

Hazard Codes  Xn
Risk Statements  22
Safety Statements  36
WGK Germany  3
RTECS  DU2200000
HS Code  2925290090
Hazardous Substances Data 114-86-3(Hazardous Substances Data)
Toxicity LD50 orl-rat: 1650 mg/kg BCFAAI 110,470,71

Phenformin price More Price(7)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Usbiological 288461 Phenformin 114-86-3 250g $382 2021-12-16 Buy
TRC P296055 N-Phenethylbiguanide 114-86-3 100mg $50 2021-12-16 Buy
AK Scientific M819 Phenformin 114-86-3 1g $154 2021-12-16 Buy
Apolloscientific OR471153 N-Phenethylbiguanide 114-86-3 5g $350 2021-12-16 Buy
SynQuest Laboratories 3641-1-04 N-Phenethylbiguanide 114-86-3 5G $415 2021-12-16 Buy
Product number Packaging Price Buy
288461 250g $382 Buy
P296055 100mg $50 Buy
M819 1g $154 Buy
OR471153 5g $350 Buy
3641-1-04 5G $415 Buy

Phenformin Chemical Properties,Uses,Production

Chemical Properties

PBI film relative density of 1.26, tensile strength of 60.76MPa, low temperature and heat resistance is excellent, in -196 ℃ not brittle, glass transition temperature of 480 ℃, 550 ℃ in the air began to decompose, can be used for a long time in the 270 ℃, PBI bonding agent with high temperature bonding strength. It is bonded to steel, room temperature shear strength of 19.6-21.56MPa; 200 ℃ for 16.66-21.56MPa, 300 ℃ for 16.66-19.6MPa. PBI glass cloth laminate high temperature resistance is very good, long-term temperature resistance of up to 427 ℃. PBI hydrolytic stability is quite high in 95% sulfuric acid at 160 ℃ after 5h, the polymer viscosity does not change. Change in 70% sulfuric acid or 25% potassium hydroxide solution heated reflux 10h, the polymer viscosity is also unchanged. It is soluble in concentrated sulfuric acid, dimethylformamide, dimethyl sulfoxide, N-methyl pyrrolidone and hexamethyl phosphoramidite.

Originator

DBI ,Geigy, US ,1959

Uses

N-Phenethylbiguanide is used in cancer treatment methods using thermotherapy and/or enhanced immunotherapy.

Definition

ChEBI: A member of the class of biguanides that is biguanide in which one of the terminal nitrogen atoms is substituted by a 2-phenylethyl group. It was used as an anti-diabetic drug but was later withdrawn from the market due to potential risk of lactic acidos s.

Manufacturing Process

15.76 g of β-phenylethylamine hydrochloride and 8.4 g of dicyandiamide were ground and intimately mixed. The mixture was heated in an oil bath in a 3neck flask fitted with a thermometer and stirrer, and the mixture began to melt at a bath temperature of 125°C and was completely fluid at 130°C. Further heating at 145°C to 150°C initiated an exothermic reaction and the temperature of the fusion mixture (156°C) exceeded the oil bath temperature (150°C) by 6°. Heating was continued for one hour at bath temperature of 148°C to 150°C. The reaction mixture was cooled, dissolved in about 100 cc of methanol and filtered. The methanol filtrate was concentrated under reduced pressure, cooled and the product (β-phenylethylbiguanide hydrochloride) filtered off and recrystallized from 95% isopropanol.

brand name

DBI (Ciba-Geigy);Adibetin;Antipond;Bi-uglucon ud87;D bretard;Daopar;Db comb.;Db retard;De be;Debej;Diaformin;Dibein retard;Dibenide;Dibinyl;Dibolin;Dibophen;Dibun;Diebin retard;Diguabet;Dobeom;Fenguanide;Gluciferne;Glucifrene;Glucopstin;Kataglicina;Ls 6030;Oraleo;Prontoformin;Tolbrtaphen.

Therapeutic Function

Antidiabetic

World Health Organization (WHO)

Phenformin, a biguanide with oral hypoglycaemic activity, was introduced in 1957 for the management of diabetes mellitus. By 1970 its use had been associated with incidences of lactic acidosis and by 1976 clinical studies had conclusively demonstrated that the hazards of phenformin treatment outweighed the benefits. Preparations containing phenformin were withdrawn in several countries and their use restricted in others. Elsewhere, however, proprietary preparations containing this drug may remain available. The related biguanide, buformin, has been also associated with lactic acidosis and has been subjected to similar restrictions as phenformin, whereas there is some evidence that metformin is less liable to induce lactic acidosis. (Reference: (WHODI) WHO Drug Information, 2, 4, 1977)

Safety Profile

Poison by intraperitoneal, subcutaneous, and intravenous routes. Moderately toxic by ingestion. When heated to decomposition it emits toxic fumes of NOx.

Enzyme inhibitor

This oral, biguanide-class antidiabetic (FWhydrochloride = 241.72 g/mol; M.P. = 175-178°C; typically supplied as the water-soluble hydrochloride salt), also known as phenethylbiguanide and phenylethylbiguanide, and named systematically as N’-b-phenethylformamidinyliminourea, was withdrawn from the U.S. market in 1977 due to high risk of inducing often fatal lactic acidosis. Target(s): cholesterol biosynthesis; 7-dehydrocholesterol reductase; diamine oxidase; glucose transport; insulysin; pyruvate kinase; and ubiquinol:cytochrome c reductase. Phenformin is an activator of AMP-stimulated protein kinase, and like ther AMPK activators also induce nucleoli re-organization, with attendanty changes in cell proliferation. Among the compounds tested, phenformin and resveratrol had the most pronounced impact on nucleolar organization. 1. McDonald & Dalidowicz Biochemistry

Global( 137)Suppliers
Supplier Tel Email Country ProdList Advantage
Hebei Chuanghai Biotechnology Co,.LTD
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HEBEI SHENGSUAN CHEMICAL INDUSTRY CO.,LTD
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Henan Tianfu Chemical Co.,Ltd.
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Hubei Jusheng Technology Co.,Ltd.
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Accela ChemBio Inc.
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Hubei xin bonus chemical co. LTD
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CONIER CHEM AND PHARMA LIMITED
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career henan chemical co
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Fuxin Pharmaceutical
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TargetMol Chemicals Inc.
+1-781-999-5354; +17819995354 marketing@targetmol.com United States 32470 58

View Lastest Price from Phenformin manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
Phenformin pictures 2026-01-06 Phenformin
114-86-3
US $999.00-666.00 / g 1g 99% 5000 HEBEI SHENGSUAN CHEMICAL INDUSTRY CO.,LTD
Phenformin pictures 2026-01-04 Phenformin
114-86-3
US $121.00-179.00 / mg 99.72% 10g TargetMol Chemicals Inc.
phenformin pictures 2025-12-25 phenformin
114-86-3
US $0.00 / gram 1gram 99% 10kg Zhejiang J&C Biological Technology Co.,Limited
  • Phenformin pictures
  • Phenformin
    114-86-3
  • US $999.00-666.00 / g
  • 99%
  • HEBEI SHENGSUAN CHEMICAL INDUSTRY CO.,LTD
  • Phenformin pictures
  • Phenformin
    114-86-3
  • US $121.00-179.00 / mg
  • 99.72%
  • TargetMol Chemicals Inc.
  • phenformin pictures
  • phenformin
    114-86-3
  • US $0.00 / gram
  • 99%
  • Zhejiang J&C Biological Technology Co.,Limited

Phenformin Spectrum

(phenylethyl)biguanide 1-phenethyl-biguanid azucaps beta-PEBG beta-Phenethybiguanide beta-Phenethylbiguanide Biguanide, 1-phenethyl- cronoformin dbcomb dbretard db-retard debeone debinyl diabis dibein dibiraf Dibotin Dipar feguanide fenfoduron fenformin Fenformina Fenormin glukopostin glyphen Imidodicarbonimidic diamide, N-(2-phenylethyl)- insoral lentobetic N-(2-Phenylethyl)dicarbonimido/ic diamide/imido n-(2-phenylethyl)-imidodicarbonimidicdiamid n’-beta-fenetilformamidiniliminourea n’-beta-phenethylformamidinylliminourea N'-beta-Fenetilformamidiniliminourea N'-beta-Phenethylformamidinylliminourea NCI-C01741 normoglucina pbi Pedg phenethylbiguanide Phenethyldiguanide Phenformine Phenformix Phenylethylbiguanide retardo W 32 w32 1-phenethylbiguanide PHENETHYLBIGUANIDE HYDROCHLORIDE PHENFORMIN PHENFORMIN HCL n-(2-phenylethyl)imidodicarbonimidic diamide polybenzoimidazole Phenformin hydrochloride CP2000 1-PHENETHYLBIGUANIDINE Phenformin (base and/or unspecified salts) enformin 1-(diaminomethylene)-2-(2-phenylethyl)guanidine 1-(diaminomethylidene)-2-(2-phenylethyl)guanidine