IARC Cancer Review: Animal Limited Evidence IMEMDT    IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 24 , 1980,p. 85.(World Health Organization, Internation Agency for Research on Cancer,Lyon, France.: ) (Single copies can be ordered from WHO Publications Centre U.S.A., 49 Sheridan Avenue, Albany, NY 12210) . Reported in EPA TSCA Inventory.

This chemical is called Hydralazine hydrochloride, and its IUPAC name is phthalazin-1-ylhydrazine hydrochloride. With the molecular formula of C₈H₉ClN₄, its classification codes are Antihypertensive; Drug / Therapeutic Agent; Mutation data; Reproductive Effect; Tumor data. The CAS registry number of this chemical is 304-20-1. Additionally, its product categories are Chemical Amines; Amines; Aromatics; Heterocycles; Inhibitors; Monoamine Oxidase. It's a direct-acting vasodilator that is used as an antihypertensive agent. 

Other characteristics of the Hydralazine hydrochloride can be summarised as followings: (1)ACD/LogP: 1.00; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): 0.54; (4)ACD/LogD (pH 7.4): 0.99; (5)ACD/BCF (pH 5.5): 1.17; (6)ACD/BCF (pH 7.4): 3.31; (7)ACD/KOC (pH 5.5): 28.69; (8)ACD/KOC (pH 7.4): 81.4; (9)#H bond acceptors: 4; (10)#H bond donors: 3; (11)#Freely Rotating Bonds: 1; (12)Polar Surface Area: 32.26 Å²; (13)Flash Point: 251.3 °C; (14)Enthalpy of Vaporization: 75.87 kJ/mol; (15)Boiling Point: 491.9 °C at 760 mmHg; (16)Vapour Pressure: 8.05E-10 mmHg at 25°C. 

When you are using this chemical, please be cautious about it as the following: This chemical is irritating to eyes, respiratory system and skin. You should wear suitable protective clothing if you use it. In case of contacting with eyes, rinse immediately with plenty of water and seek medical advice.

You can still convert the following datas into molecular structure: 
1.SMILES: Cl.n2nc(c1ccccc1c2)NN
2.InChI: InChI=1/C8H8N4.ClH/c9-11-8-7-4-2-1-3-6(7)5-10-12-8;/h1-5H,9H2,(H,11,12);1H
3.InChIKey: ZUXNZUWOTSUBMN-UHFFFAOYAU

The toxicity data is as follows: