Shanghai Nianxing Industrial Co., Ltd
China
Product Name: Diethylene Glycol Cyclic Phthalate
Price: Check
Purity: 98.0%
Stocking Period: 10 Day
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Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 3,4,6,7-tetrahydro-2,5,8-benzotrioxacycloundecin-1,9-dione
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

13988-26-6

13988-26-6 structure

13988-26-6 structure

Name: 3,4,6,7-tetrahydro-2,5,8-benzotrioxacycloundecin-1,9-dione
Chemical Name: 3,6,9-trioxabicyclo[9.4.0]pentadeca-1(15),11,13-triene-2,10-dione
CAS Number: 13988-26-6
Molecular Formula: C₁₂H₁₂O₅
Molecular Weight: 236.22100
Create Date: 2017-06-30 18:54:57
Modify Date: 2025-09-18 16:06:48

Name	3,6,9-trioxabicyclo[9.4.0]pentadeca-1(15),11,13-triene-2,10-dione
Synonyms	Phthalic acid,cyclic oxydiethylene ester 3,4,6,7-tetrahydro-2,5,8-benzotrioxacycloundecine-1,9-dione 3,4,6,7-Tetrahydro-2,5,8-benzotrioxacycloundecin-1,9-dione EINECS 237-784-0 2,5,8-Benzotrioxacycloundecin-1,9-dione,3,4,6,7-tetrahydro Diethylene glycol bisphthalate

Density	1.236 g/cm3
Boiling Point	500ºC at 760 mmHg
Molecular Formula	C₁₂H₁₂O₅
Molecular Weight	236.22100
Flash Point	228ºC
Exact Mass	236.06800
PSA	61.83000
LogP	1.03040
Vapour Pressure	3.95E-10mmHg at 25°C
Index of Refraction	1.512

CHEMICAL IDENTIFICATION

RTECS NUMBER :: TI0540000

CHEMICAL NAME :: Phthalic acid, cyclic oxydiethylene ester

CAS REGISTRY NUMBER :: 13988-26-6

LAST UPDATED :: 199701

DATA ITEMS CITED :: 2

MOLECULAR FORMULA :: C12-H12-O5

MOLECULAR WEIGHT :: 236.24

WISWESSER LINE NOTATION :: T6-11- BVO FO IOV&TJ

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 45 gm/kg/13W-C

TOXIC EFFECTS :: Tumorigenic - equivocal tumorigenic agent by RTECS criteria Gastrointestinal - colon tumors

REFERENCE :: EJCAAH European Journal of Cancer. (Oxford, UK) V.1-17(6), 1965-1981. For publisher information, see EJCODS. Volume(issue)/page/year: 5,415,1969

HS Code	2932999099

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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