4,4'-di-tert-butyl-5,5'-dimethyl-2,2'-sulfanediyl-di-phenol, also known as Santowhite? BBS, is a chemical compound with the molecular formula C22H30O2S. It is a white crystalline powder that is widely used as an antioxidant in the rubber and plastics industry. 4,4'-di-tert-butyl-5,5'-dimethyl-2,2'-sulfanediyl-di-phenol is particularly effective in preventing the oxidation of rubber, which can lead to degradation and loss of mechanical properties over time. Its chemical structure, featuring two phenolic hydroxyl groups connected by a sulfide bridge and stabilized by tert-butyl and methyl groups, contributes to its antioxidant properties. Santowhite? BBS is known for its high thermal stability and low volatility, making it a preferred choice for applications where long-term protection against oxidative degradation is required.
2649-98-1
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Basic information
- Product Name: 4,4'-di-tert-butyl-5,5'-dimethyl-2,2'-sulfanediyl-di-phenol
- Synonyms:
- CAS NO:2649-98-1
- Molecular Formula:
- Molecular Weight: 358.545
- EINECS: N/A
- Product Categories: N/A
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Chemical Properties
- Melting Point: N/A
- Boiling Point: N/A
- Flash Point: N/A
- Appearance: N/A
- Density: N/A
- Refractive Index: N/A
- Storage Temp.: N/A
- Solubility: N/A
- CAS DataBase Reference: 4,4'-di-tert-butyl-5,5'-dimethyl-2,2'-sulfanediyl-di-phenol(CAS DataBase Reference)
- NIST Chemistry Reference: 4,4'-di-tert-butyl-5,5'-dimethyl-2,2'-sulfanediyl-di-phenol(2649-98-1)
- EPA Substance Registry System: 4,4'-di-tert-butyl-5,5'-dimethyl-2,2'-sulfanediyl-di-phenol(2649-98-1)
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Safety Data
- Hazard Codes: N/A
- Statements: N/A
- Safety Statements: N/A
- WGK Germany:
- RTECS:
- HazardClass: N/A
- PackingGroup: N/A
- Hazardous Substances Data: 2649-98-1(Hazardous Substances Data)
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Check Digit Verification of cas no
The CAS Registry Mumber 2649-98-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,6,4 and 9 respectively; the second part has 2 digits, 9 and 8 respectively.Calculate Digit Verification of CAS Registry Number 2649-98:
(6*2)+(5*6)+(4*4)+(3*9)+(2*9)+(1*8)=111
111 % 10 = 1
So 2649-98-1 is a valid CAS Registry Number.
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4,4'-di-tert-butyl-5,5'-dimethyl-2,2'-sulfanediyl-di-phenol
