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TRI(2,3-DICHLOROPROPYL)PHOSPHATE (TDCPP), also known as Firemaster 550, is a flame retardant chemical used in various products, including furniture, electronics, and building materials, to reduce the risk of fire. It is a white crystalline solid with the chemical formula C9H15Cl6O4P. TDCPP has been identified as a potential health and environmental concern due to its persistence, bioaccumulation, and toxicity. It has been classified as a probable human carcinogen by the International Agency for Research on Cancer (IARC) and is listed under the U.S. Environmental Protection Agency's Toxics Release Inventory (TRI). As a result, there has been growing scrutiny and regulation of TDCPP, with some countries and regions implementing restrictions or bans on its use.

136-87-8

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136-87-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 136-87-8 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 1,3 and 6 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 136-87:
(5*1)+(4*3)+(3*6)+(2*8)+(1*7)=58
58 % 10 = 8
So 136-87-8 is a valid CAS Registry Number.

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