The Bismuththiol , with cas registry number of 1072-71-5, has other registry numbers including 10472-91-0, 10502-35-9, and 66057-67-8. It also called Bismuththiol ; 2,5-Dimercapto-1,3,4-thiadiazole ; DMTD . The IUPAC name is 1,3,4-thiadiazolidine-2,5-dithione . The systematic name is also called 1,3,4-thiadiazolidine-2,5-dithione . It belongs to the categories of (1)API intermediates; (2)Analytical Chemistry; (3)Bipyridyls, etc. (Chelating Reagents); (4)Chelating Reagents.

Physical properties of Bismuththiol are: (1) ACD/LogP: 0.20 ; (2) # of Rule of 5 Violations: 0 ; (3) ACD/LogD (pH 5.5): -0.02 ; (4) ACD/LogD (pH 7.4): -1.36 ; (5) ACD/BCF (pH 5.5): 1 ; (6) ACD/BCF (pH 7.4): 1 ; (7) ACD/KOC (pH 5.5): 18.25 ; (8) ACD/KOC (pH 7.4): 1 ; (9) #H bond acceptors: 2 ; (10) #H bond donors: 2 ; (11) #Freely Rotating Bonds: 0 ; (12) Index of Refraction: 1.902 ; (13) Molar Refractivity: 38.8 cm³ ; (14) Molar Volume: 83.2 cm³ ; (15) Surface Tension: 133 dyne/cm ; (16) Enthalpy of Vaporization: 44.76 kJ/mol ; (17) Vapour Pressure: 0.184 mmHg at 25°C.

Preparation of Bismuththiol : This chemical can be prepared by the carbon disulfide. The reaction occures in the solvent of liquid ammonia and ethanol using the reagent of Hydrazine hydrate for 1 hour. The yield is 62%.

Uses of Bismuththiol : (1) It is used as pharmaceutical intermediates, raw materials
of organic synthesis, analytical reagents, fuel additives, etc. (2) This compound is mainly used to prepare other chemicals. Here will give you a example. Bismuththiol is used to prepare the 3H,3'H-5,5'-disulfanediyl-bis-[1,3,4]thiadiazole-2-thione using solvent of Methanol for 48 hours. This process also needs irradiation. The yield is about 20%.

When you are using this chemical, please be cautious about it as the following:
The Bismuththiol is irritating to eyes, respiratory system and skin. It is poison by intraperitoneal route. When heated to decomposition, it emits very toxic fumes of NO_x and SO_x. When use it, wear suitable protective clothing, suitable gloves and eye/face protection. If contact with eyes, rinse immediately with plenty of water and seek medical advice.

You can still convert the following datas into molecular structure:
(1) SMILES:S=C1SC(=S)NN1 ;
(2) InChI:InChI=1/C2H2N2S3/c5-1-3-4-2(6)7-1/h(H,3,5)(H,4,6) ;
(3) InChIKey:BIGYLAKFCGVRAN-UHFFFAOYAT

The toxicity data is as follows: