Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 2-Formyl-3,4-dihydro-2H-pyran
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang
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100-73-2

100-73-2 structure

Name: 3,4-Dihydro-2H-pyran-2-carbaldehyde
Chemical Name: 3,4-dihydro-2H-pyran-2-carbaldehyde
CAS Number: 100-73-2
Molecular Formula: C₆H₈O₂
Molecular Weight: 112.127
Catalog: Pharmaceutical intermediate Heterocyclic compound Pyran compound
Create Date: 2018-08-07 21:29:08
Modify Date: 2026-07-08 15:54:35

Name	3,4-dihydro-2H-pyran-2-carbaldehyde
Synonyms	Pyranaldehyde 3,4-Dihydro-2H-pyran-2-carboxaldehyde 2H-Pyran-2-cboxaldehyde,3,4-dihydro 2-formyl-2,3-dihydropyran α-FROMY-3.4-DIHYDIO-2H-PYRAN 2-ACETYL-5-CHLORO-81-METHYLTHIANAPHTHENE 3,4-Dihydro-2H-pyran-2-aldehyde Acroleindimer 2-Propenal dimer 2H-Pyran-2-cboxaldehyde, 3,4-dihydro 3,4-Dihydro-2H-pyran-2-carbaldehyd 3,4-Dihydro-2H-Pyran-2-cboxaL 3,4-DIHYDRO-2H-PYRAN-2-CBOXALDHYDE 2-Formyl-3,4-dihydro-2h-pyran(MT-A4) 5-Hexenal, 2,6-oxy 3,4-dihydro-2h-pyran-2-cboxaldehyd MT-A4 MFCD00059170 5-Hexenal,2,6-epoxy Acrolein dimer Acrolein dimer, 2-Formyl-3,4-dihydro-2H-pyran acrylaldehyde dimer 3,4-Dihydro-2H-pyran-2-cboxaldehyde 2-formyldihydropyran Acrolein dimer() Pyran aldehyde (Acrolein dimer) 2,6-oxy-5-hexena 2-Formyl-3,4-dihydro-2H-pyran ISO 9001：2015 REACH EINECS 202-884-5 2-Formyl-3,4-dihydro-pyran 3,4-Dihydro-2-formyl-2H-pyran a-fromy-3.4-dihydio-2H-pyran 3, 4-dihydro-2-H pyran-2-formaldehyde α-Acetyl-3,4-dihydro-2H-pyran 2,6-oxy-5-Hexenal 3,4-Dihydro-2-cboxaldehyde-2H-pyran 3,4-Dihydro-(2H)-pyrane-2-cbaldehyde 2H-PYRAN-2-CARBOXALDEHYDE,3,4-DIHYDRO Pyran aldehyde 3,4-Dihydro-2H-pyran-2-cbaldehyde 2-Formyl-3,4-dihydro-2H-pyran 2,3-Dihydro-1,4-pyran-2-kboxaldehyd

Density	1.2±0.1 g/cm3
Boiling Point	185.1±39.0 °C at 760 mmHg
Melting Point	-100ºC
Molecular Formula	C₆H₈O₂
Molecular Weight	112.127
Flash Point	73.4±20.6 °C
Exact Mass	112.052429
PSA	26.30000
LogP	-0.17
Vapour Pressure	0.7±0.4 mmHg at 25°C
Index of Refraction	1.547

CHEMICAL IDENTIFICATION

RTECS NUMBER :: UP6825000

CHEMICAL NAME :: 2H-Pyran-2-carboxaldehyde, 3,4-dihydro-

CAS REGISTRY NUMBER :: 100-73-2

BEILSTEIN REFERENCE NO. :: 0107244

LAST UPDATED :: 199806

DATA ITEMS CITED :: 6

MOLECULAR FORMULA :: C6-H8-O2

MOLECULAR WEIGHT :: 112.14

WISWESSER LINE NOTATION :: T6O BUTJ FVH

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: Open irritation test

ROUTE OF EXPOSURE :: Administration onto the skin

SPECIES OBSERVED :: Rodent - rabbit

REFERENCE :: UCDS** Union Carbide Data Sheet. (Union Carbide Corp., 39 Old Ridgebury Rd., Danbury, CT 06817) Volume(issue)/page/year: 7/27/1965 ** ACUTE TOXICITY DATA **

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 4920 mg/kg

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

REFERENCE :: AMIHBC AMA Archives of Industrial Hygiene and Occupational Medicine. (Chicago, IL) V.2-10, 1950-54. For publisher information, see AEHLAU. Volume(issue)/page/year: 10,61,1954

TYPE OF TEST :: LC50 - Lethal concentration, 50 percent kill

ROUTE OF EXPOSURE :: Inhalation

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 3225 ppm/4H

TOXIC EFFECTS :: Sense Organs and Special Senses (Eye) - effect, not otherwise specified Lungs, Thorax, or Respiration - respiratory depression Lungs, Thorax, or Respiration - other changes

REFERENCE :: TOXID9 Toxicologist. (Soc. of Toxicology, Inc., 475 Wolf Ledge Parkway, Akron, OH 44311) V.1- 1981- Volume(issue)/page/year: 13,228,1993 ** OTHER MULTIPLE DOSE TOXICITY DATA **

TYPE OF TEST :: TCLo - Lowest published toxic concentration

ROUTE OF EXPOSURE :: Inhalation

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 194 ppm/6H/9D-I

TOXIC EFFECTS :: Kidney, Ureter, Bladder - changes in bladder weight Blood - changes in platelet count Biochemical - Metabolism (Intermediary) - other proteins

REFERENCE :: TOXID9 Toxicologist. (Soc. of Toxicology, Inc., 475 Wolf Ledge Parkway, Akron, OH 44311) V.1- 1981- Volume(issue)/page/year: 36(1,pt2),272,1997

Hazard Codes	Xn
Risk Phrases	R10
Safety Phrases	16-26-33-36/37/39-45
RIDADR	UN 2607
RTECS	UP6825000
Packaging Group	III
Hazard Class	3.2

107-02-8

~90%

100-73-2

Literature: Hsieh, Hsing-Pang; Chen, Shui-Tein; Wang, Kung-Tsung Journal of the Chinese Chemical Society, 1997 , vol. 44, # 6 p. 597 - 600

3749-36-8

100-73-2

Literature: Chemische Berichte, , vol. 123, # 1 p. 153 - 168

292638-85-8

107-02-8

100-73-2

23125-70-4

Literature: Synthetic Communications, , vol. 30, # 7 p. 1159 - 1165

3540-36-1

100-73-2

Literature: Chemische Berichte, , vol. 123, # 1 p. 153 - 168

78-94-4

107-02-8

100-73-2

3749-34-6

Detail

Literature: Angewandte Chemie - International Edition, , vol. 48, # 48 p. 9156 - 9159

111-34-2

107-02-8

100-73-2

332-19-4

Literature: J. Appl. Chem. USSR (Engl. Transl.), , vol. 60, # 3 p. 588 - 592,552 - 555

Precursor 6
107-02-8 3749-36-8 292638-85-8 3540-36-1
78-94-4 111-34-2
DownStream 9
34723-82-5 3749-36-8 19611-45-1 22347-71-3
110-94-1 111-27-3 629-11-8 280-16-0
22625-07-6

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877633-72-2	877633-74-4
877633-76-6	887221-52-5
877633-78-8	877633-80-2
877633-82-4	877633-86-8
877633-88-0	877633-90-4