Tris(dipropylene glycol) phosphonate
[CAS# 36788-39-3]

Identification

• Name: Tris(dipropylene glycol) phosphonate
• Synonyms: CS 22; CS 22 (antioxidant); Dipropylene glycol phosphite (3:1); Niax CS 22; Tris(dipropylene glycol) phosphite; Tris(dipropylene glycol) phosphonate; Weston 430
• Molecular Formula: C₁₈H₃₉O₉P
• Molecular Weight: 430.47
• CAS Registry Number: 36788-39-3
• EC Number: 253-211-7

Properties

• Density: 1.097 g/cm³ (25 ºC)^*
• Refractive index: 1.461 (589.3 nm 25 ºC)^*

^* Friedman, Lester; FR 1321898 1963.

Safety Data

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Reproductive toxicity	Repr.	2	H361
Skin sensitization	Skin Sens.	1B	H317
Skin sensitization	Skin Sens.	1	H317
Acute toxicity	Acute Tox.	4	H332
Acute hazardous to the aquatic environment	Aquatic Acute	1	H400
Acute toxicity	Acute Tox.	2	H300
Carcinogenicity	Carc.	2	H351
Chronic hazardous to the aquatic environment	Aquatic Chronic	2	H411