66086-33-7

66086-33-7 structure
66086-33-7 structure

Name ditert-butyl but-2-ynedioate
Synonyms di-tert-Butyl acetylenedicarboxylate
Di-tert-butyl 2-butynedioate
EINECS 266-135-4
2-Butynedioic acid di-tert-butyl ester
acetylenedicarboxylic acid di-tert-butyl ester
dietertiarybutyl acetylenedicarboxylate
MFCD00008808
Density 1.042g/cm3
Boiling Point 80-82ºC0.05 mm Hg(lit.)
Melting Point 33-37ºC(lit.)
Molecular Formula C12H18O4
Molecular Weight 226.26900
Flash Point >230 °F
Exact Mass 226.12100
PSA 52.60000
LogP 1.67320
Index of Refraction 1.457
Symbol GHS05 GHS07
GHS05, GHS07
Signal Word Danger
Hazard Statements H314-H335
Precautionary Statements P261-P280-P305 + P351 + P338-P310
Personal Protective Equipment Eyeshields;Faceshields;full-face particle respirator type N100 (US);Gloves;respirator cartridge type N100 (US);type P1 (EN143) respirator filter;type P3 (EN 143) respirator cartridges
Hazard Codes C
Risk Phrases 34-36/37
Safety Phrases 26-27-28-36/37/39-45
RIDADR UN 3261 8/PG 3
Packaging Group III
HS Code 2917190090
Precursor  3

DownStream  1

HS Code 2917190090
Summary 2917190090 acyclic polycarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0%