Shanghai Nianxing Industrial Co., Ltd
China
Product Name: 1,4-Benzodioxan
Price: Check
Purity: 98.0%
Stocking Period: 10 Day
Contact: Yang
Email: sales@echemcloud.com

Shanghai Jizhi Biochemical Technology Co., Ltd
China
Product Name: 1,4-Benzodioxan
Price: ￥108.0/5g ￥348.0/25g
Purity: 98.0%
Stocking Period: 2 Day
Contact: Liu jia
Email: 2130147988@qq.com

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 1,4-Benzodioxane
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

493-09-4

493-09-4 structure

493-09-4 structure

Name: 1,4-Benzodioxan
Chemical Name: 1,4-Benzodioxan
CAS Number: 493-09-4
Molecular Formula: C₈H₈O₂
Molecular Weight: 136.148
Create Date: 2018-05-18 08:00:00
Modify Date: 2025-08-23 12:54:32

Name	1,4-Benzodioxan
Synonyms	Pyrocatechol ethylene ether 1,4-benzdioxane EINECS 207-775-6 2,3-dihydrobenzo[b][1,4]dioxane 1,4-Benzodioxin, 2,3-dihydro- 2,3-Dihydro-1,4-benzodioxine 2,3-dihydro-1,4-benzodioxane 1,4-BENZODIOXANE 1,4-Benzdioxan 2,3-dihydrobenzo[b][1,4]dioxine 1,2-Ethylenedioxybenzene 2,3-dihydro-[1,4]dioxino[2,3-b]pyridine 2-benzyl-1,4-dioxane 1,4-Benzodioxan 1,2-ETHYLENDIOXYBENZENE 1,4-Benzodioxan (8CI) BENZO-1,4-DIOXANE MFCD00006821 2,3-Dihydro-1,4-benzodioxin 2,3-dihydro-benzo[1,4]dioxine

Density	1.1±0.1 g/cm3
Boiling Point	248.1±0.0 °C at 760 mmHg
Molecular Formula	C₈H₈O₂
Molecular Weight	136.148
Flash Point	87.8±0.0 °C
Exact Mass	136.052429
PSA	18.46000
LogP	1.88
Vapour Pressure	0.0±0.4 mmHg at 25°C
Index of Refraction	1.538
Water Solubility	insoluble

CHEMICAL IDENTIFICATION

RTECS NUMBER :: DF4728000

CHEMICAL NAME :: 1,4-Benzodioxin, 2,3-dihydro-

CAS REGISTRY NUMBER :: 493-09-4

LAST UPDATED :: 199709

DATA ITEMS CITED :: 1

MOLECULAR FORMULA :: C8-H8-O2

MOLECULAR WEIGHT :: 136.16

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

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

ROUTE OF EXPOSURE :: Subcutaneous

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: >1 gm/kg

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

REFERENCE :: PCJOAU Pharmaceutical Chemistry Journal (English Translation). Translation of KHFZAN. (Plenum Pub. Corp., 233 Spring St., New York, NY 10013) No.1- 1967- Volume(issue)/page/year: 21,341,1987

Hazard Codes	Xi: Irritant;
Safety Phrases	S23-S24/25
WGK Germany	3
RTECS	DF4728000
HS Code	29329995

Precursor 10
34743-89-0 120-80-9 106-93-4 67470-89-7
3663-82-9 107-21-1 583-53-9 95-50-1
2924-65-4 367-12-4
DownStream 9
110851-12-2 54557-81-2 57672-33-0 57744-67-9
57744-68-0 67471-04-9 4792-78-3 120-80-9
4442-54-0

HS Code	2932999099
Summary	2932999099. other heterocyclic compounds with oxygen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

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