IP Grade (Indian Pharmacopoeia) chemicals

What IP grade means

IP grade indicates that a substance has been tested and complies with its monograph in the Indian Pharmacopoeia, the official book of standards for drugs in India. The Indian Pharmacopoeia is published by the Indian Pharmacopoeia Commission (IPC), an autonomous body under the Ministry of Health and Family Welfare, and its standards have legal status under the Drugs and Cosmetics Act, 1940 and its rules. New editions and addenda are issued periodically, and the COA should state the edition applied.

What an IP monograph covers

• Definition and content limits, often expressed on the dried or anhydrous basis
• Identification tests, such as IR, HPLC retention time or chemical tests
• Tests for related substances, residual solvents, heavy metals or elemental impurities, sulfated ash, loss on drying or water
• Assay by a stated method
• Storage and labelling requirements

Typical specification profile

Parameter	Example: sodium chloride IP
Content	99.0 to 100.5% (dried basis)
Acidity or alkalinity	Complies
Heavy metals / iron / sulfate / bromide	Within monograph limits
Loss on drying	≤ 0.5%

Values in the table are typical of the grade. The limits that apply to a given product are those stated on its specification and lot Certificate of Analysis.

Where it is used

IP grade materials are used in medicines manufactured for the Indian market, in analytical testing performed to IP methods, and in export documentation where Indian standards are referenced. Many excipients, such as lactose, starch, magnesium stearate and sodium chloride, and many APIs, are available in IP grade, frequently dual- or multi-certified to BP, USP or Ph. Eur.

How it differs from neighbouring grades

BP, USP and Ph. Eur. grades are tested to other pharmacopoeias. Limits and methods are often harmonised but can differ, so material for a given market should meet that market's pharmacopoeia. AR grade may be purer in some respects but is not tested to a monograph and has no regulatory standing for drug manufacture. Compliance with a monograph is necessary but not sufficient for use in a medicine: the manufacturer's GMP status and regulatory documentation also matter, and supplier qualification remains the buyer's responsibility.

Documentation

For IP-grade supplies we provide a lot COA referencing the IP monograph and edition, and can request additional manufacturer documents on your behalf.