2,3'-Dichlor-benzidin, also known as 2,3'-dichlorobiphenyl-4,4'-diamine, is an organic compound with the chemical formula C12H10Cl2N2. It is a derivative of benzidine, a known carcinogen, and is characterized by the presence of two chlorine atoms at the 2nd and 3rd positions of the biphenyl structure. This chemical is primarily used as an intermediate in the synthesis of various dyes and pigments, particularly those with high color strength and fastness properties. Due to its potential health risks, including carcinogenicity, strict regulations and safety measures are in place for its production, use, and disposal.

2528-70-3

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Basic information
1. Product Name: 2.3'-Dichlor-benzidin
2. Synonyms:
3. CAS NO:2528-70-3
4. Molecular Formula:
5. Molecular Weight: 253.131
6. EINECS: N/A
7. Product Categories: N/A
Chemical Properties
1. Melting Point: N/A
2. Boiling Point: N/A
3. Flash Point: N/A
4. Appearance: N/A
5. Density: N/A
6. Refractive Index: N/A
7. Storage Temp.: N/A
8. Solubility: N/A
9. CAS DataBase Reference: 2.3'-Dichlor-benzidin(CAS DataBase Reference)
10. NIST Chemistry Reference: 2.3'-Dichlor-benzidin(2528-70-3)
11. EPA Substance Registry System: 2.3'-Dichlor-benzidin(2528-70-3)
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: 2528-70-3(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 2528-70-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,5,2 and 8 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 2528-70:
(6*2)+(5*5)+(4*2)+(3*8)+(2*7)+(1*0)=83
83 % 10 = 3
So 2528-70-3 is a valid CAS Registry Number.

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