The IUPAC name of 6-Chloropurine is 6-chloro-7H-purine. With the CAS registry number 87-42-3, it is also named as 1H-Purine, 6-chloro- (9CI). The product's categories are Fine Chemical & Intermediates; Heterocyclic Compounds; Nucleotides and Nucleosides; Purines; Biochemistry; Nucleosides, Nucleotides & Related Reagents; Bases & Related Reagents; Nucleotides; Building Blocks; Halogenated Heterocycles; Heterocyclic Building Blocks; Biochemicals and Reagents; Nucleosides, Nucleotides, Oligonucleotides. It is light yellow crystalline powder which is soluble in water, ether and dimethyl formamide. Additioanlly, this chemical should be sealed in the container and stored at the temperature of 4 °C.

Physical properties about 6-Chloropurine are: (1)ACD/LogP: -0.061; (2)ACD/LogD (pH 5.5): -0.06; (3)ACD/LogD (pH 7.4): -0.06; (4)ACD/BCF (pH 5.5): 1.00; (5)ACD/BCF (pH 7.4): 1.00; (6)ACD/KOC (pH 5.5): 22.06; (7)ACD/KOC (pH 7.4): 22.06; (8)#H bond acceptors: 4; (9)Index of Refraction: 1.843 ; (10)Molar Refractivity: 37.302 cm³; (11)Molar Volume: 83.984 cm³; (12)Polarizability: 14.788 10-24cm³; (13)Surface Tension: 73.2460021972656 dyne/cm; (14)Density: 1.84 g/cm³; (15)Flash Point: 109.146 °C; (16) Enthalpy of Vaporization: 47.442 kJ/mol; (17)Boiling Point: 256.862 °C at 760 mmHg; (18)Vapour Pressure: 0.0240000002086163 mmHg at 25°C

Preparation of 6-Chloropurine: It can be obtained by 1,7(9)-dihydro-purin-6-one. This reaction needs reagent POCl₃, dimethylaniline by heating. The reaction time is 0.5 hours. The yield is 47%. 

Uses of 6-Chloropurine: It is used as intermediate of purine products. It also can react with 3-methyl-oxazolidine to get 8-methyl-7,8-dihydro-6H-[1,3,6]oxdiazocino[3,4,5-g,h]purine. This reaction needs solvent N,N-dimethyl-acetamide at temperature of 110 °C. The reaction time is 30 min. The yield is 60%.  

When you are using this chemical, please be cautious about it as the following:
It is not only harmful by inhalation, in contact with skin and if swallowed, but also irritating to eyes, respiratory system and skin. In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. If you want to contact this product, you must wear suitable protective clothing, gloves and eye/face protection.

You can still convert the following datas into molecular structure:
(1)InChI=1S/C5H3ClN4/c6-4-3-5(9-1-7-3)10-2-8-4/h1-2H,(H,7,8,9,10);
(2)InChIKey=ZKBQDFAWXLTYKS-UHFFFAOYSA-N;
(3)Smilesc12c(ncnc1Cl)nc[nH]2

The toxicity data is as follows: