643-79-8

643-79-8 structure

Name: o-Phthalaldehyde
Chemical Name: phthalaldehyde
CAS Number: 643-79-8
Molecular Formula: C₈H₆O₂
Molecular Weight: 134.132
Catalog: Chemical reagent Organic reagent Aromatic aldehyde (containing acetal, hemiacetal)
Create Date: 2018-02-08 08:00:00
Modify Date: 2025-08-20 15:14:55

Name	phthalaldehyde
Synonyms	EINECS 211-402-2 MFCD00003335 o-Phthalaldehyde

Density	1.2±0.1 g/cm3
Boiling Point	266.1±23.0 °C at 760 mmHg
Melting Point	55-58 °C(lit.)
Molecular Formula	C₈H₆O₂
Molecular Weight	134.132
Flash Point	98.5±19.6 °C
Exact Mass	134.036774
PSA	34.14000
LogP	0.51
Vapour Pressure	0.0±0.5 mmHg at 25°C
Index of Refraction	1.623
Storage condition	2-8°C
Stability	Stable. Air sensitive. Incompatible with strong oxidizing agents, strong bases.
Water Solubility	soluble

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: COREAF Comptes Rendus Hebdomadaires des Seances, Academie des Sciences. (Paris, France) V.1-261, 1835-1965. For publisher information, see CRASEV. Volume(issue)/page/year: 246,851,1958 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - X4335 No. of Facilities: 178 (estimated) No. of Industries: 3 No. of Occupations: 5 No. of Employees: 3253 (estimated) No. of Female Employees: 2222 (estimated)

Symbol	GHS05, GHS06, GHS09
Signal Word	Danger
Hazard Statements	H301-H314-H317-H400
Precautionary Statements	P273-P280-P301 + P310-P305 + P351 + P338-P310
Personal Protective Equipment	Faceshields;full-face respirator (US);Gloves;Goggles;multi-purpose combination respirator cartridge (US);type ABEK (EN14387) respirator filter
Hazard Codes	T:Toxic
Risk Phrases	R25;R34;R43
Safety Phrases	S26-S28-S36-S45-S36/37/39-S61
RIDADR	UN2923 8/PG 2
WGK Germany	3
RTECS	TH6950000
HS Code	2912299000

HS Code	2912299000
Summary	2912299000. other cyclic aldehydes without other oxygen function. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:5.5%. General tariff:30.0%