API Process Intermediates & Related Compounds

Phthalimide

Name: Phthalimide
Brand: Zemixal
SKU: ZX-012779

Reference StandardIn stock

Buy Phthalimide (CAS 85-41-6) from Zemixal: C8H5NO2, COA and SDS with every lot, worldwide shipping. Packs from 10 mg. Catalogue no. ZX-012779.

Pack sizes

CAS number85-41-6

FormulaC₈H₅NO₂

Molar mass147.13 g/mol

Physical formSolid

HS code2933

InChIKeyXKJCHHZQLQNZHY-UHFFFAOYSA-N

IUPAC nameisoindole-1,3-dione

About Phthalimide

Zemixal supplies Phthalimide within its pharma Intermediates & Building Blocks portfolio. Key data (Reference Standard): CAS 85-41-6, formula C8H5NO2 and molar mass 147.13 g/mol. It is handled as a solid.

Where it is used

API route development
Impurity fate & purge studies
Analytical method development

Safe handling

No GHS classification is recorded for this item, but handle it with normal laboratory care.

Standard pack sizes are 10 mg, 25 mg, 50 mg, 100 mg and 250 mg, and custom quantities are quoted on request. Each lot travels with a batch certificate of analysis and a 16-section SDS. Request pricing online and we confirm availability, documentation and freight to your country.

Reference standards for Rivaroxaban

See every impurity, metabolite and related compound we list for this API.

Rivaroxaban standards

Typical uses

API route development
Impurity fate & purge studies
Analytical method development

Applications

Pharmaceutical Manufacturing and QC Research Labs and Universities

Specifications and identifiers

Specifications of Phthalimide
Product name	Phthalimide
Catalogue number	ZX-012779
CAS number	85-41-6
Other CAS numbers	33081-78-6, 1074-82-4
IUPAC name	isoindole-1,3-dione
Molecular formula	C₈H₅NO₂
Molar mass	147.13 g/mol
Exact mass	147.032
Grade	Reference Standard
Physical form	Solid
XLogP3	1.1
H-bond donors / acceptors	1 / 2
Topological polar surface area	46.2 Å²
HS code	2933
InChIKey	XKJCHHZQLQNZHY-UHFFFAOYSA-N
SMILES	C1=CC=C2C(=C1)C(=O)NC2=O
PubChem CID	6809
Synonyms	1,3-Isoindolinedione, 2,3-Dihydro-1H-isoindole-1,3-dione, Benzoimide, 1,2-Benzenedicarboximide, 1,3-Dihydro-2H-isoindole-1,3-dione, 1,3-Dioxo-1,3-dihydroisoindole, Phenylimide, 1H-Isoindole-1,3(2H)-dione, o-Phthalic imide, 2-Diazoindan-1,3-dione, Ftalimmide, isoindoline-1,3-dione

Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.

Safety and GHS hazards

No GHS classification is on file for this item. Handle it as an unknown laboratory chemical and request the SDS with your quotation.

Pack sizes

Pack sizes of Phthalimide
10 mg	Quoted on request
25 mg	Quoted on request
50 mg	Quoted on request
100 mg	Quoted on request
250 mg	Quoted on request
500 mg	Quoted on request
1 g	Quoted on request

Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.

Questions about Phthalimide

Which CAS number identifies Phthalimide?

Phthalimide is registered under CAS 85-41-6. You may also see it listed as 1,3-Isoindolinedione, 2,3-Dihydro-1H-isoindole-1,3-dione, Benzoimide. Our catalogue number for this item is ZX-012779.

What are the formula and molar mass of Phthalimide?

For Phthalimide, its formula is C8H5NO2 and its molar mass is 147.13 g/mol. The systematic (IUPAC) name is isoindole-1,3-dione. InChIKey XKJCHHZQLQNZHY-UHFFFAOYSA-N lets you match it in any structure database.

How is Phthalimide used in pharmaceutical QC?

Phthalimide is a characterised reference material linked to Rivaroxaban. Laboratories use it to identify and quantify this impurity during method development and validation, stability work, batch release testing and regulatory submissions.

What grade and pack sizes are available for Phthalimide?

This listing is Reference Standard grade. Standard packs are 10 mg, 25 mg, 50 mg, 100 mg, 250 mg, 500 mg. Larger quantities and custom packing can be quoted on request.

Which documents come with Phthalimide?

Each lot ships with a batch certificate of analysis and a 16-section GHS safety data sheet. A typical COA or specification sheet can be shared with the quotation before you order.

Can Zemixal ship Phthalimide to my country?

Yes. Phthalimide ships worldwide by express courier, air cargo or sea freight, quoted on the Incoterm you prefer, with full export documents.

Other grades with CAS 85-41-6

Phthalimide, 98%

CAS: 85-41-6
Formula: C₈H₅NO₂
MW: 147.13 g/mol

ZX-011692

Phthalimide, GR 98%+

CAS: 85-41-6
Formula: C₈H₅NO₂
MW: 147.13 g/mol

ZX-011693

More Rivaroxaban standards

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Formula: C₁₃H₁₉N₃O₃
MW: 265.31 g/mol

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Rivaroxaban Intermediate 3

CAS: 1252018-20-4
Formula: C₁₃H₁₆N₂O₃
MW: 248.28 g/mol

ZX-012822

N-(S)-Glycidylphthalimide

CAS: 161596-47-0
Formula: C₁₁H₉NO₃
MW: 203.19 g/mol

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CAS: 1640884-60-1
Formula: C₁₀H₁₂N₂O₂.ClH
MW: 230.67 g/mol

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CAS: 438056-69-0
Formula: C₁₀H₁₂N₂O₂
MW: 192.21 g/mol

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Formula: C₇H₆N₄O
MW: 162.15 g/mol

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Rivaroxaban WS

CAS: 366789-02-8
Formula: C₁₉H₁₈ClN₃O₅S
MW: 435.9 g/mol

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Rivaroxaban Phthalimido Descarbonyl Impurity

CAS: 446292-07-5
Formula: C₂₁H₂₁N₃O₅
MW: 395.4 g/mol

ZX-006341

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