Shanghai Nianxing Industrial Co., Ltd
China
Product Name: PrecoceneI
Price: Check
Purity: 97.0%
Stocking Period: 10 Day
Contact: Yang
Email: sales@echemcloud.com

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 2H-1-Benzopyran,7-methoxy-2,2-dimethyl-
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

17598-02-6

17598-02-6 structure

17598-02-6 structure

Name: 2H-1-Benzopyran,7-methoxy-2,2-dimethyl-
Chemical Name: precocene I
CAS Number: 17598-02-6
Molecular Formula: C₁₂H₁₄O₂
Molecular Weight: 190.23800
Catalog: analytical chemistry Standard Pesticides, veterinary drugs and fertilizers
Create Date: 2018-06-11 19:12:23
Modify Date: 2025-08-27 16:14:31

Name	precocene I
Synonyms	MFCD00006818 7-methoxy-2,2-dimethyl-3-chromene 7-methoxy-2,2-dimethylchromene 7-methoxy-2,2-dimethyl-2H-chromene 2,2-Dimethyl-7-methoxy-2H-1-benzopyran 7-methoxy-2,2-dimethyl-2H-1-benzopyran EINECS 241-566-0 Demethoxyageratochromene PRICOCENE I Precocene I 7-methoxy-2,2-dimethylchrom-3-ene 6-Demethoxyageratochromene 2H-1-Benzopyran,7-methoxy-2,2-dimethyl 2,2 dimethyl 7 methoxychromene 7-Methoxy-2,2-dimethyl-2H-benzopyran Precocene 1

Density	1.052 g/mL at 25 °C(lit.)
Boiling Point	68 °C0.1 mm Hg(lit.)
Molecular Formula	C₁₂H₁₄O₂
Molecular Weight	190.23800
Flash Point	>230 °F
Exact Mass	190.09900
PSA	18.46000
LogP	2.87940
Index of Refraction	n20/D 1.56(lit.)

CHEMICAL IDENTIFICATION

RTECS NUMBER :: DJ2529000

CHEMICAL NAME :: 2H-1-Benzopyran, 2,2-dimethyl-7-methoxy-

CAS REGISTRY NUMBER :: 17598-02-6

BEILSTEIN REFERENCE NO. :: 0133917

LAST UPDATED :: 199612

DATA ITEMS CITED :: 1

MOLECULAR FORMULA :: C12-H14-O2

MOLECULAR WEIGHT :: 190.26

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 47560 ug/kg

TOXIC EFFECTS :: Tumorigenic - Carcinogenic by RTECS criteria Liver - tumors

REFERENCE :: CNREA8 Cancer Research. (Public Ledger Building, Suit 816, 6th & Chestnut Sts., Philadelphia, PA 19106) V.1- 1941- Volume(issue)/page/year: 47,2275,1987

Symbol	GHS07
Signal Word	Warning
Hazard Statements	H302
Hazard Codes	Xn,N
Risk Phrases	22-51/53
Safety Phrases	61
RIDADR	NONH for all modes of transport
WGK Germany	3
RTECS	DJ2529000
HS Code	2909199090

Precursor 7
54874-21-4 20321-73-7 150-19-6 107-86-8
673-22-3 638-10-8 34191-90-7
DownStream 6
20321-73-7 33279-69-5 19013-03-7 73385-35-0
87894-90-4 62291-19-4

HS Code	2909199090
Summary	2909199090. other acyclic ethers and their halogenated, sulphonated, nitrated or nitrosated derivatives. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:5.5%. General tariff:30.0%

The content on this webpage is sourced from various professional data sources. If you have any questions or concerns regarding the content, please feel free to contact service1@chemsrc.com.