3,3'-Dipyridyl disulfide, also known as 4,4'-dithiodipyridine, is an organic compound with the chemical formula C10H8N2S2. It is a yellow crystalline solid that is soluble in organic solvents such as ethanol, acetone, and dimethylformamide. 3,3'-dipyridyl disulfide is primarily used as a reagent in various analytical chemistry applications, including the detection of metal ions like copper, silver, and mercury through the formation of colored complexes. It is also employed in the synthesis of other organic compounds and as a ligand in coordination chemistry. Due to its reactivity with thiols, 3,3'-dipyridyl disulfide has potential applications in the study of protein structure and function.

538-45-4

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Basic information
1. Product Name: 3,3'-dipyridyl disulfide
2. Synonyms: 3,3'-dipyridyl disulfide;3,3-Dithiodipyridine Dihydrochloride
3. CAS NO:538-45-4
4. Molecular Formula: C10H10Cl2N2S2
5. Molecular Weight: 0
6. EINECS: N/A
7. Product Categories: N/A
8. Mol File: 538-45-4.mol
Chemical Properties
1. Melting Point: N/A
2. Boiling Point: 356.1°Cat760mmHg
3. Flash Point: 169.2°C
4. Appearance: /
5. Density: g/cm³
6. Refractive Index: N/A
7. Storage Temp.: N/A
8. Solubility: N/A
9. CAS DataBase Reference: 3,3'-dipyridyl disulfide(CAS DataBase Reference)
10. NIST Chemistry Reference: 3,3'-dipyridyl disulfide(538-45-4)
11. EPA Substance Registry System: 3,3'-dipyridyl disulfide(538-45-4)
Safety Data
1. Hazard Codes: N/A
2. Statements: N/A
3. Safety Statements: N/A
4. WGK Germany:
5. RTECS:
6. HazardClass: N/A
7. PackingGroup: N/A
8. Hazardous Substances Data: 538-45-4(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 538-45-4 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 5,3 and 8 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 538-45:
(5*5)+(4*3)+(3*8)+(2*4)+(1*5)=74
74 % 10 = 4
So 538-45-4 is a valid CAS Registry Number.

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