The systematic name of this chemical is D-Cystine. With the CAS registry number 349-46-2 and EINECS registry number 206-486-2, it is also named as D(+)-3,3'-dithiobis(2-aminopropanoic acid). In addition, the molecular formula is C₆H₁₂N₂O₄S₂ and the molecular weight is 240.30. It is a kind of white crystals and should be stored in a cool and dry place.

Physical properties about D-Cystine are: (1)ACD/LogP: 1.23; (2)# of Rule of 5 Violations: 1; (3)ACD/LogD (pH 5.5): -1.28; (4)ACD/LogD (pH 7.4): -1.4; (5)ACD/BCF (pH 5.5): 1; (6)ACD/BCF (pH 7.4): 1; (7)ACD/KOC (pH 5.5): 1; (8)ACD/KOC (pH 7.4): 1; (9)#H bond acceptors: 6; (10)#H bond donors: 6; (11)#Freely Rotating Bonds: 9; (12)Polar Surface Area: 109.68 Å²; (13)Index of Refraction: 1.652; (14)Molar Refractivity: 55.95 cm³; (15)Molar Volume: 152.8 cm³; (16)Polarizability: 22.18 ×10^-24cm³; (17)Surface Tension: 88.2 dyne/cm; (18)Density: 1.571 g/cm³; (19)Flash Point: 237 °C; (20)Enthalpy of Vaporization: 80.02 kJ/mol; (21)Boiling Point: 468.2 °C at 760 mmHg; (22)Vapour Pressure: 4.62E-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. And it is harmful if swallowed. During using it, wear suitable protective clothing, gloves and eye/face protection and avoid contact with skin and eyes. In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. In addition, you should not breathe dust.

You can still convert the following datas into molecular structure:
(1)SMILES: O=C(O)[C@H](N)CSSC[C@H](C(=O)O)N
(2)Std.InChI: InChI=1S/C6H12N2O4S2/c7-3(5(9)10)1-13-14-2-4(8)6(11)12/h3-4H,1-2,7-8H2,(H,9,10)(H,11,12)/t3-,4-/m1/s1
(3)Std.InChIKey: LEVWYRKDKASIDU-QWWZWVQMSA-N