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Insecticides and acaricides

Precocene II

Also known as Ageratochromene, Precocene 2, Pricocene ii

CAS 644-06-4Formula C13H16O3Molar mass 220.27 g/molEC 211-408-5
GHS signal word: Warning. Pictograms: Serious health hazard 6 suppliers listed
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Precocene II chemical structure, C13H16O3, CAS 644-06-4
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
644-06-4
Formula
C13H16O3
Molar mass
220.27 g/mol
EC number
211-408-5
HS code
293299
Category
Insecticides and acaricides

What is Precocene II?

Plain description, key identifiers and synonyms

Precocene II is a member of chromenes. It has a role as a member of precocenes.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
6,7-dimethoxy-2,2-dimethylchromene
CAS number
644-06-4 CAS number cross-checked
EC number
211-408-5
Molecular formula
C13H16O3
UNII
1W2R4TRY5H
MDL number
MFCD00006816
InChIKey
PTIDGSWTMLSGAH-UHFFFAOYSA-N
InChI
InChI=1S/C13H16O3/c1-13(2)6-5-9-7-11(14-3)12(15-4)8-10(9)16-13/h5-8H,1-4H3
SMILES (canonical and isomeric)
CC1(C=CC2=CC(=C(C=C2O1)OC)OC)C

Synonyms

  • Ageratochromene
  • Precocene 2
  • Pricocene ii
  • Precocen 2
  • 6,7-dimethoxy-2,2-dimethylchromene
  • 6,7-Dimethoxy-2,2-dimethyl-2H-benzo(b)pyran
  • 6,7-methoxy-2,2-dimethylchromene
  • 6,7-Dimethoxy-2,2-dimethyl-2H-chromene
  • 2H-1-Benzopyran, 6,7-dimethoxy-2,2-dimethyl-
  • 6,7-Dimethoxy-2,2-dimethyl2H-1-benzopyran
  • 6,7-Dimethoxy-2,2-dimethyl-2H-1-benzopyran
  • Preconene II
  • Prococene II
  • 6,7-dimethoxy-2,2-dimethyl-chromene
  • 6,7-Dimethoxy-2,2-dimethyl-3-chromene
  • 5-17-05-00288 (Beilstein Handbook Reference)
  • 2H-1-Benzopyran,7-dimethoxy-2,2-dimethyl-
  • 6,7-Dimethoxy-2,2-dimethyl-2H-chromene #
  • 2H-1-benzopyran, 6,7-dimethoxy-2,2-dimethyl
  • 6,7-dimethoxy-2,2-dimethyl-(2H)-benzopyran (Precocene II )

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

No measured properties are recorded for this substance yet. Ask suppliers for a technical data sheet.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
220.27 g/molcalc.
Exact mass
220.1099 Dacalc.
LogP (octanol/water)
2.89calc.
Topological polar surface area
27.69 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
3calc.
Rotatable bonds
2calc.
Heavy atoms
16calc.
Rings
2calc.
Aromatic rings
1calc.
Fraction sp3 carbons
0.39calc.
Formal charge
0calc.
Stereocentres
0calc.
Lipinski rule of five
Passes (0 violations)calc.

Calculated for screening. Confirm critical figures with the supplier.

Murcko scaffold

The ring system that remains when every side chain is removed

Murcko scaffold of this chemical, C1=Cc2ccccc2OC1

C1=Cc2ccccc2OC1

2 rings, 10 atoms, the Benzopyran ring system.

907 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Warning
GHS08: Serious health hazard
Serious health hazard

Hazard statements

  • H341Suspected of causing genetic defects.
Precautionary statements (5)
  • P203Obtain, read and follow all safety instructions before use.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P318If exposed or concerned, get medical advice.
  • P405Store locked up.
  • P501Dispose of contents and container in accordance with local regulations.

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Full safety data and first aid

Precocene II suppliers

Sponsored listings first, then the documented ranking: membership, verification, replies, completeness, freshness and ratings

All 6 suppliers
6 of 6 offers

Suppliers marked Unclaimed profile have not claimed their profile yet. They are not verified by CompoundList, their offers are price on request and details may have changed, so please confirm them with the supplier. Company representatives can claim a profile with a business email on the company's own website domain. Our team verifies each claim and sends the result by email.

Where suppliers are based

6 suppliers in 3 countries

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Precocene II price

Indicative price range per kg from live supplier offers

No published prices right now

Suppliers quote this chemical on request. Send one free request and compare quotes side by side.

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Uses and applications

What the substance is used for, by industry and function

Pharmacological actions

  • Insecticides

Roles

  • growth regulator
  • insect growth regulator
  • insecticide
  • juvenile hormone antagonists
  • pesticide
  • precocenes

Regulatory status

Inventories, regulations and trade controls that list this substance

United States

  • TSCA inventory (USA)
    Status: Inactive in US commerce

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Precocene II is traded under.

HS 2932.99Indicative HS code

Heterocyclic compounds with oxygen hetero-atom(s) only, other

World exports in 2024
$3.81B
+10.3% vs 2023, imports $7.05B
2019 to 2024
Top exporters
  1. China28.9%
  2. Switzerland * partner reported12.7%
  3. Germany7.8%
Top importers
  1. United States49.7%
  2. China11.9%
  3. India * partner reported3.3%

* Partner reported figures, a lower bound.

Reported customs values in USD, not prices.Full trade data

The HS code shown for Precocene II is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Precocene II, based on the data on this page

What is Precocene II?

Precocene II is a member of chromenes. It has a role as a member of precocenes.

What is the CAS number of Precocene II?

The CAS registry number of Precocene II is 644-06-4.

What is the molecular formula and weight of Precocene II?

The molecular formula of Precocene II is C13H16O3 and its molar mass is 220.27 g/mol.

What is Precocene II used for?

Known uses and roles of Precocene II include insecticides in agriculture and crop protection, growth regulator, insect growth regulator, insecticide, juvenile hormone antagonists and 3 more.

Is Precocene II hazardous?

Precocene II carries the GHS signal word "Warning". Main hazards: suspected of causing genetic defects. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Precocene II?

Precocene II is usually classified under HS code 293299 (Heterocyclic compounds with oxygen hetero-atom(s) only, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Precocene II?

CompoundList lists 6 suppliers of Precocene II in China, Australia and Hong Kong. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of Precocene II?

Suppliers quote Precocene II on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

Practical guides that help when you source, ship or handle Precocene II

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Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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