Specialty Additives Available — Bulk Only

Lactose Monohydrate (Hydrous Lactose)

CAS 10039-26-6 · Formula C12H24O12 · MW 360.31 g/mol

Fine-milled monohydrate lactose for uniform dispersion in dry blends and granulations. It is used as a diluent and filler-binder in pharmaceutical solid dosage forms and as an ingredient in food products.

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HS Code
1702.11
At a Glance
Material Family
Specialty Additives
Record Type
Pure compound
Primary Role
Thickening / Rheology
Functional Roles
Industries Served
Applications & Use Cases
  • Tablet/capsule diluent: filler-binder for solid dosage forms
  • Wet granulation: soluble diluent for granulated formulations
  • Food ingredient: carbohydrate ingredient in food products
Safety & Handling
Full SDS available on request

A grade-specific Safety Data Sheet (SDS) — with the complete hazard classification, handling precautions, and transport information — is supplied with every shipment and available on request. Confirm all safety and regulatory details against the SDS for your specific grade.

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HS / Tariff Classification
Harmonized System (HS) Code — 6-digit international heading
1702 . 11
Chapter 17
Chemical product (see national tariff schedule for the full classification)
Heading 17.02
Internationally harmonized (WCO HS)
Subheading 1702.11
6-digit international code — national tariff line adds further digits
Chemical Identity
CAS Number
10039-26-6
Molecular Formula
C12H24O12
Molecular Weight
360.31 g/mol
IUPAC Name
(2R,3R,4S,5R,6S)-2-(hydroxymethyl)-6-[(2R,3S,4R,5R)-4,5,6-trihydroxy-2-(hydroxymethyl)oxan-3-yl]oxyoxane-3,4,5-triol;hydrate
PubChem CID
InChI Key
WSVLPVUVIUVCRA-RJMJUYIDSA-N
Synonyms & Trade Names
Lactose, monohydrate D-Lactose monohydrate D-Lactose (monohydrate) lactose hydrate Pharmatose 200M; Pharmatose 450M Lactose Standard 5 % D-(+)-Lactose 1-hydrate HY-W115740 4-O-beta-D-Galactopyranosyl-D-glucopyranose--water (1/1)
Full Description

Hydrous (monohydrate) Lactose (CAS 10039-26-6) is crystalline lactose monohydrate milled to a fine powder, a disaccharide of galactose and glucose. It is used as a diluent and filler-binder in pharmaceutical solid dosage forms and as an ingredient in food products.

Frequently Asked Questions

What is lactose 200 mesh?

Lactose 200 mesh is crystalline lactose monohydrate milled to a fine particle size that passes a 200-mesh screen. This NF hydrous grade (CAS 10039-26-6) is used as a soluble diluent and filler-binder in pharmaceutical solid dosage forms, particularly wet granulation, and as a food ingredient.

What is lactose NF?

Lactose NF is lactose that meets the National Formulary compendial specification for pharmaceutical use. This product is the hydrous (monohydrate) form, a disaccharide of galactose and glucose, supplied as a fine 200-mesh powder for solid dosage forms.

What is this fine-powder lactose used for?

The 200-mesh hydrous grade is used as a filler-binder and soluble diluent in tablets and capsules and as a soluble diluent in wet-granulated formulations; the fine particle size aids blend uniformity. It also serves as a carbohydrate ingredient in food products.

Does this lactose contain dairy?

Yes. Lactose is milk sugar and is dairy-derived. RawSource supplies it as a purified NF-grade carbohydrate; specify any allergen-documentation requirements on your RFQ.

What is the HS code and bulk packaging for Lactose NF Hydrous 200 mesh?

It classifies under HS 1702.11 (lactose 99% or more). RawSource ships the fine powder in bulk bags and palletized packaging to pharmaceutical and food manufacturers, with NF Certificate of Analysis and SDS on request. Contact us for a bulk quote.

Disclaimer. Information on this page — including properties, identifiers, hazard, transport (DOT/UN) and tariff (HS) classifications, and applications — is provided for general reference and is compiled from authoritative public sources (e.g. PubChem/ECHA, 49 CFR 172.101, the Harmonized Tariff Schedule). Values are typical and are not a guaranteed specification; the Certificate of Analysis (CoA) for the lot purchased governs. Products are sold for industrial and professional use only. Nothing here is a medical, health, or efficacy claim or advice. Always consult the current Safety Data Sheet (SDS) before handling, storage, transport or disposal, and confirm regulatory status, classification and suitability for your application and jurisdiction. Hazard, transport and tariff classifications must be verified for your specific shipment. RawSource makes no warranty, express or implied, and assumes no liability for use of this information. Trademarks. Third-party trademarks and brand names are the property of their respective owners; any reference is nominative — used only to identify a comparable product — and does not imply affiliation with, sponsorship by, or endorsement by the trademark owner.