The IUPAC name of Phentanyl citrate is 2-hydroxypropane-1,2,3-tricarboxylic acid;N-(1-phenethylpiperidin-4-yl)-N-phenylpropanamide. With the CAS registry number 990-73-8 and EINECS 213-588-0, it is also named as N-(1-Phenethyl-4-piperidinyl)propionanilide dihydrogen citrate. The product's categories are Intermediates & Fine Chemicals; Pharmaceuticals. It is white powder which is soluble in methanol and slightly soluble in chloroform. When heated to decomposition this chemical emits toxic fumes of NO_x.

The other characteristics of this product can be summarized as: (1)ACD/LogP: 3.89; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): 1.02; (4)ACD/LogD (pH 7.4): 2.53; (5)ACD/BCF (pH 5.5): 1; (6)ACD/BCF (pH 7.4): 23.4; (7)ACD/KOC (pH 5.5): 4.24; (8)ACD/KOC (pH 7.4): 136.78; (9)#H bond acceptors: 3; (10)#H bond donors: 0; (11)#Freely Rotating Bonds: 6; (12)Polar Surface Area: 23.55 Å²; (13)Enthalpy of Vaporization: 72.79 kJ/mol; (14)Vapour Pressure: 7.25E-09 mmHg at 25°C; (15)Rotatable Bond Count: 11; (16)Exact Mass: 528.247166; (17)MonoIsotopic Mass: 528.247166; (18)Topological Polar Surface Area: 156; (19)Heavy Atom Count: 38; (20)Complexity: 618.

Preparation of Phentanyl citrate: First, we can get Fentanyl alkali by phenylethylamine from the addition, cyclization, condensation, reduction and propionyl. And then, after the salting of Fentanyl alkali and citrate, we can get the product.

Uses of Phentanyl citrate: It is an analgesic for short time. Fentanyl is also used as an adjunct to general anesthetics, and as an anesthetic for induction and maintenance.

When you are using this chemical, please be cautious about it as the following:
It is highly flammable, so people should keep away from sources of ignition. It is also toxic by inhalation, in contact with skin and if swallowed. What's more, it has danger of very serious irreversible effects. If you want to contact this product, you must wear suitable protective clothing, gloves and eye/face protection. In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) Keep container tightly closed.

People can use the following data to convert to the molecule structure.
1. SMILES:O=C(O)C(O)(CC(=O)O)CC(=O)O.O=C(N(c1ccccc1)C3CCN(CCc2ccccc2)CC3)CC
2. InChI:InChI=1/C22H28N2O.C6H8O7/c1-2-22(25)24(20-11-7-4-8-12-20)21-14-17-23(18-15-21)16-13-19-9-5-3-6-10-19;7-3(8)1-6(13,5(11)12)2-4(9)10/h3-12,21H,2,13-18H2,1H3;13H,1-2H2,(H,7,8)(H,9,10)(H,11,12)

The following are the toxicity data which has been tested.