O-6-Benzyl Guanine

Name: O-6-Benzyl Guanine
Brand: Zemixal
SKU: ZX-029276

Reference StandardAvailable on request

O-6-Benzyl Guanine (CAS 19916-73-5) supplier Zemixal: C12H11N5O, COA and SDS with every lot, worldwide shipping. Ships from India to 120+ countries.

Pack sizes

CAS number19916-73-5

FormulaC₁₂H₁₁N₅O

Molar mass241.25 g/mol

Physical formSolid

HS code38229090

InChIKeyKRWMERLEINMZFT-UHFFFAOYSA-N

IUPAC name6-phenylmethoxy-7H-purin-2-amine

About O-6-Benzyl Guanine

O-6-Benzyl Guanine is supplied by Zemixal as a characterised reference material for Entecavir analysis. For your records (Reference Standard), the material is defined by CAS 19916-73-5, formula C12H11N5O and molar mass 241.25 g/mol. It is handled as a solid.

Where it is used

Analytical method development
Method validation (AMV)
QC release testing
ANDA / DMF filings

Storage and safety notes

Hazard communication follows GHS (Warning: H315, H319 and H335). Our SDS lists exposure controls and first-aid measures.

Available as 10 mg, 25 mg, 50 mg and 100 mg. Larger or split packs can be arranged. Every shipment includes a certificate of analysis with characterisation data. Add it to your quote list and our team replies with price, lead time and shipping options within one business day.

Reference standards for Entecavir

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

Entecavir standards

Typical uses

Analytical method development
Method validation (AMV)
QC release testing
ANDA / DMF filings

Applications

Pharmaceutical Manufacturing and QC Research Labs and Universities

Specifications and identifiers

Specifications of O-6-Benzyl Guanine
Product name	O-6-Benzyl Guanine
Catalogue number	ZX-029276
CAS number	19916-73-5
IUPAC name	6-phenylmethoxy-7H-purin-2-amine
Molecular formula	C₁₂H₁₁N₅O
Molar mass	241.25 g/mol
Exact mass	241.0964
Grade	Reference Standard
Physical form	Solid
XLogP3	1.2
H-bond donors / acceptors	2 / 5
Topological polar surface area	89.7 Å²
HS code	38229090
InChIKey	KRWMERLEINMZFT-UHFFFAOYSA-N
SMILES	C1=CC=C(C=C1)COC2=NC(=NC3=C2NC=N3)N
PubChem CID	4578
Synonyms	6-O-Benzylguanine, 2-Amino-6-(benzyloxy)purine, O(6)-Bgua, 2-Amino-6-(phenylmethoxy)-9H-purine, 6-(Phenylmethoxy)-9H-purin-2-amine, 6-(Benzyloxy)-7H-purin-2-amine, 6-(benzyloxy)-9H-purin-2-amine, 2-amino-6-benzyloxypurine, 6-Benzyloxyguanine, KRX-0402

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

Safety and GHS hazards

Irritant or harmful

Signal word Warning

H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation

Precautionary statements P261, P264, P264 + P265, P271, P280, P302 + P352, P304 + P340, P305 + P351 + P338, P319, P321, P332 + P317, P337 + P317, P362 + P364, P403 + P233, P405, P501

Classification summarised from public GHS notifications. It can vary with grade and concentration, so always follow the SDS supplied with your lot.

Pack sizes

Pack sizes of O-6-Benzyl Guanine
10 mg	Quoted on request
25 mg	Quoted on request
50 mg	Quoted on request
100 mg	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 O-6-Benzyl Guanine

Which CAS number identifies O-6-Benzyl Guanine?

O-6-Benzyl Guanine is registered under CAS 19916-73-5. You may also see it listed as 6-O-Benzylguanine, 2-Amino-6-(benzyloxy)purine, O(6)-Bgua. Our catalogue number for this item is ZX-029276.

What are the formula and molar mass of O-6-Benzyl Guanine?

For O-6-Benzyl Guanine, its formula is C12H11N5O and its molar mass is 241.25 g/mol. The systematic (IUPAC) name is 6-phenylmethoxy-7H-purin-2-amine. InChIKey KRWMERLEINMZFT-UHFFFAOYSA-N lets you match it in any structure database.

How is O-6-Benzyl Guanine used in pharmaceutical QC?

O-6-Benzyl Guanine is a characterised reference material linked to Entecavir. 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 O-6-Benzyl Guanine?

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

Which documents come with O-6-Benzyl Guanine?

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 O-6-Benzyl Guanine to my country?

Yes. Because O-6-Benzyl Guanine is classed as hazardous, it travels in UN-approved packaging as dangerous goods under IATA or IMDG rules, with the export paperwork your broker needs.

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