Chemistry informtion about Beryllium Oxyacetate (CAS NO.19049-40-2) is:
IUPAC Name: Tetraberyllium Oxygen(2-) Hexaacetate
Synonyms: Beryllium Oxide Acetate ; Beryllium, Hexakis(Acetato)Oxotetra- ; Beryllium, Hexakis(Mu-Acetato)-Mu4-Oxotetra- ; Beryllium, Hexakis[Mu-(Acetato-O:O')]-Mu4-Oxotetra- ; Beryllium,Hexakis(Μ-Acetato)-Μ4-Oxotetra- ; Berylliumoxideacetate ; Berylliumoxyacetate ; Hexakis(Acetato)Oxotetraberyllium
MF: C₁₂H₁₈Be₄O₁₃
MW: 406.31
EINECS: 242-785-4 
Flash Point: 40 °C
Boiling Point: 117.1 °C at 760 mmHg
Vapour Pressure: 13.9 mmHg at 25°C
Enthalpy of Vaporization: 23.7 kJ/mol
Following is the molecular structure of Beryllium Oxyacetate (CAS NO.19049-40-2) is:

IARC Cancer Review: Group 1 IMEMDT    IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 58 (1993),p. 41.(World Health Organization, Internation Agency for Research on Cancer,Lyon, France.: ) (Single copies can be ordered from WHO Publications Centre U.S.A., 49 Sheridan Avenue, Albany, NY 12210) ; Human Sufficient Evidence IMEMDT    IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 58 (1993),p. 41.(World Health Organization, Internation Agency for Research on Cancer,Lyon, France.: ) (Single copies can be ordered from WHO Publications Centre U.S.A., 49 Sheridan Avenue, Albany, NY 12210) ; Animal Sufficient Evidence IMEMDT    IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 1 (1972),p. 17.(World Health Organization, Internation Agency for Research on Cancer,Lyon, France.: ) (Single copies can be ordered from WHO Publications Centre U.S.A., 49 Sheridan Avenue, Albany, NY 12210) ; Animal Sufficient Evidence IMEMDT    IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 23 (1980),p. 143.(World Health Organization, Internation Agency for Research on Cancer,Lyon, France.: ) (Single copies can be ordered from WHO Publications Centre U.S.A., 49 Sheridan Avenue, Albany, NY 12210) ; Animal Sufficient Evidence IMEMDT    IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 58 (1993),p. 41.(World Health Organization, Internation Agency for Research on Cancer,Lyon, France.: ) (Single copies can be ordered from WHO Publications Centre U.S.A., 49 Sheridan Avenue, Albany, NY 12210) . Beryllium and its compounds are on the Community Right-To-Know List.

Safty information about Beryllium Oxyacetate (CAS NO.19049-40-2) is:
Confirmed carcinogen. See BERYLLIUM COMPOUNDS. When heated to decomposition it emits toxic fumes of BeO. 
RIDADR: 1566
HazardClass: 6.1(a)
PackingGroup: II

OSHA PEL: TWA 0.002 mg(Be)/m³; STEL 0.005 mg(Be)/m³/30M; CL 0.025 mg(Be)/m³
ACGIH TLV: TWA 0.002 mg(Be)/m³; Confirmed Human Carcinogen; (Proposed: TWA 0.0002 mg(Be)/m³ (sensitizer); Confirmed Human Carcinogen)
NIOSH REL: (Beryllium) CL not to exceed 0.0005 mg(Be)/m³