CAS 18959-30-3 4,5-DIFLUOROPHTHALIC ANHYDRIDE molecular structure

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CAS RN: 18959-30-3

4,5-DIFLUOROPHTHALIC ANHYDRIDE

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7 package records7 with current stock1 grade group

Grade In stock only

Batch No.	Package	Availability	Warehouse	Inquiry
Batchno.20250930	100g	In stock	Shanghai	Inquiry
Batchno.20250527	10g	In stock	Shanghai, Shenzhen, Tianjin	Inquiry
Batchno.20251024	1g	In stock	Shanghai, Shenzhen, Tianjin	Inquiry
Batchno.20260213	250mg	In stock	Shanghai, Tianjin, Wuhan	Inquiry
Batchno.20250310	25g	In stock	Shanghai, Shenzhen	Inquiry
Batchno.20250714	500g	In stock	Shanghai	Inquiry
Batchno.20250313	5g	In stock	Shanghai, Shenzhen, Tianjin, Chengdu	Inquiry

Product code: SSC-088722

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Verified Factory Data

Supply Overview & Packaging Options

Packaging options, recorded purity, stock quantity and ship-from location below are generated from the current factory data table for this CAS.

Pack sizes on record: 1g, 5g, 10g, 0.25g, 25g, 100g
Available purity: ≥98%
Inventory rows with stock: 5
Bulk packaging: confirmed by inquiry

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Available Pack Sizes & Stock

Specific stock quantities are shown below. Price is not displayed online and is confirmed by inquiry.

Recorded sizes, purity and stock details for CAS 18959-30-3
Pack Size	Recorded Purity	Available Qty	Ship From	Inquiry
1g	≥98%	5 In Stock	Beijing	Inquiry
5g	≥98%	5 In Stock	Shanghai	Inquiry
10g	≥98%	5 In Stock	Shanghai	Inquiry
0.25g	≥98%	2 In Stock	Hong Kong	Inquiry
25g	≥98%	2 In Stock	Shanghai	Inquiry
100g	≥98%	0 Out of Stock	Shenzhen	Inquiry

18959-30-3 / 5,6-difluoro-2-benzofuran-1,3-dione

Standard CAS: 18959-30-3 Multi CAS: No

Basic Information Computed Properties Safety & Transport

Basic Information

CAS

18959-30-3

Multi CAS

Molecular Formula

C8H2F2O3

Molecular Weight

184.100000

Exact Mass

183.997200

SMILES

C1=C2C(=CC(=C1F)F)C(=O)OC2=O

InChI

InChI=1S/C8H2F2O3/c9-5-1-3-4(2-6(5)10)8(12)13-7(3)11/h1-2H

InChIKey

UATBWQQFLABWKR-UHFFFAOYSA-N

Computed Properties

Structural Parameters

Heavy atom count

Aromatic heavy atom count

H-bond acceptors

Molar refractivity

36.1

TPSA

43.37

LogP / Solubility

WLOGP

1.28

MLOGP

1.12

XLogP3

1.5

Consensus LogP

1.3

Log S (ESOL)

-2.13

Class (ESOL)

Moderately soluble

Log S (Ali)

-1.99

Class (Ali)

Soluble

Log S (SILICOS-IT)

-1.92

Class (SILICOS-IT)

Soluble

ADME

GI absorption

High

BBB permeant

Yes

P-gp substrate

CYP1A2 inhibitor

CYP2C19 inhibitor

CYP2C9 inhibitor

CYP2D6 inhibitor

CYP3A4 inhibitor

Log Kp (skin permeation)

-2.94

Drug-likeness / Medicinal Chemistry

Lipinski

Yes

Ghose

Veber

Yes

Egan

Yes

Muegge

Bioavailability score

0.55

Brenk alerts

Leadlikeness

Synthetic Accessibility

1.5

Safety & Transport

Pictogram(s)

Corrosive Irritant Health Hazard

Signal

Danger

GHS Hazard Statements

H302 (66.7%): Harmful if swallowed [Warning Acute toxicity, oral] H315 (100%): Causes skin irritation [Warning Skin corrosion/irritation] H317 (33.3%): May cause an allergic skin reaction [Warning Sensitization, Skin] H318 (33.3%): Causes serious eye damage [Danger Serious eye damage/eye irritation] H319 (66.7%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]

Precautionary Statement Codes

P233, P260, P261, P264, P264+P265, P270, P271, P272, P280, P284, P301+P317, P302+P352, P304+P340, P305+P351+P338, P305+P354+P338, P317, P319, P321, P330, P332+P317, P333+P317, P337+P317, P342+P316, P362+P364, P403, P403+P233, P405, and P501

Applications of CAS 18959-30-3

This compound is commonly used in general chemistry research and laboratory applications. Starshine Chemical supplies CAS 18959-30-3 for R&D and pilot-scale use, with flexible pack sizes and purity grades available.

Storage & Handling

Storage: Keep the container tightly closed in a cool, dry and well-ventilated place. For detailed hazard, storage and transport information, request the SDS (Safety Data Sheet) with your inquiry.

Quotation & Packaging

Prices are confirmed by inquiry. Request a quote for current pricing, minimum order quantity (MOQ) and lead time. The pack sizes listed on this page are reference options; custom pack sizes and bulk quantities are available on request.

Quality & Compliance

Specifications and purity shown on this page are based on batch records. A Certificate of Analysis (COA) is available on request. For research and further manufacturing use only — not for direct human or therapeutic use.