Bis(trimethylsilyl)tributyltin phosphate

双(三甲基硅基)三丁基锡磷酸酯

Also known as: Tributylstannyl bis(trimethylsilyl) phosphate, Bis[(trimethylsilyl)tributyl]stannyl phosphate, tri-n-butylstannyl bis(trimethylsilyl)phosphate, Bis(trimethylsilyl)-tributylstannyl phosphate, 3,5-Dioxa-4-phospha-2-sila-6-stannadecane, 6,6-dibutyl-2,2-dimethyl-4-[(trimethylsilyl)oxy]-, 4-oxide

Bis(trimethylsilyl)tributyltin phosphate (CAS 74785-85-6) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C18H45O4PSi2Sn and a molecular weight of 531.39300 g/mol. It is also known as Tributylstannyl bis(trimethylsilyl) phosphate, Bis[(trimethylsilyl)tributyl]stannyl phosphate and tri-n-butylstannyl bis(trimethylsilyl)phosphate. Key properties include a boiling point of 423.7ºC at 760 mmHg and a flash point of >230 °F. GHS signal word: Danger. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

74785-85-6

Jingsj CID

J-26661-1

Molecular Formula

C₁₈H₄₅O₄PSi₂Sn

Chinese Name

双(三甲基硅基)三丁基锡磷酸酯

Molecular Weight

531.39300 g/mol

Category

Organic Acids

Last updated

8/21/2026