text.skipToContent text.skipToNavigation
+86 400 921 6156

{{ addToCartData.mixPtRmWarning }}

Do you want to proceed?
{{requestQuote.productName}}; {{requestQuote.form.productCode}}

Thank you

We will respond to your enquiry shortly.

Something went wrong, please try again later.

 Bulk Order
{{ cartItemsCount }} 0
If not, click 'cancel'. You can also save this item for later.
Cancel
{{ cartItemsCount }} 0
If not, click 'cancel'. You can also save this item for later.
Cancel
Popular Regions
All Regions
+86 400 921 6156

Nortadalafil

Product Code

DRE-C15651900

CAS Number

171596-36-4

Product Format

Neat

Lot Number

1400158

Expiry

2026-10-12

Molecular Formula

C21 H17 N3 O4

Molecular Weight

375.38

Product Categories

Dr. Ehrenstorfer, Erectile dysfunction drugs, Erectile dysfunction drugs

Product Type

Native/Parent

Price and availability

48-hour USA dispatch time
{{ psProduct.packSize }}
{{ psProduct.code }}
Request Quote  Add to Cart 

{{ favouriteItem.successMessage }}

View favourites

Product removed from your favourites

{{ addToCartData.mixPtRmWarning }}

Do you want to proceed?
{{requestQuote.productName}}; {{requestQuote.form.productCode}}

Thank you

We will respond to your enquiry shortly.

Something went wrong, please try again later.

Documentation

Where shall we send your requested CoA?
Part number:  {{ coaPopupData.packSize.code }}

{{ errors.first('lotNumber') }}

{{ errors.first('requestEmail') }}
LGC will use your email address only for the purposes of providing the requested document.
For information about our data processing activities, please visit our Privacy Notice.

{{ coaPopupData.serverError }}
Where shall we send your requested CoA?

Enter your email address and we'll email you the relevant CoA for lots:
{{ coaPopupData.packSize.coaSelectedLotNumbers }}

{{ errors.first('coaEmail') }}

 By entering your email address, you confirm that you give your consent to LGC to share information in connection with the product(s) above and other similar products from time to time. LGC will process your personal data in accordance with all applicable data protection rules and regulations. For information relating to LGC’s data processing activities, please visit our Privacy Policy below (see footer).
Cancel
Thank you

We will be sending the CoA to your email address  {{ coaEmailPopupData.userEmail }}

Thank you

Your request has been sent to our sales team to process.
Where shall we send your requested SDS?
Part number:  {{ sdsPopupData.packSize.code }}

{{ errors.first('selectedRegion') }}

{{ errors.first('sdsEmail') }}

LGC will use your email address only for the purposes of providing the requested document.
For information about our data processing activities, please visit our Privacy Notice.

{{ sdsPopupData.serverError }}
Thank you

Your request has been sent to our sales team to process.

Product Information

Analyte Data

Analyte Name

N-Desmethyl Tadalafil

CAS Number

171596-36-4

Molecular Formula

C21 H17 N3 O4

Molecular Weight

375.38

Accurate Mass

375.1219

SMILES

O=C1CNC(=O)[C@H]2Cc3c([nH]c4ccccc34)[C@H](N12)c5ccc6OCOc6c5

InChI

InChI=1S/C21H17N3O4/c25-18-9-22-21(26)15-8-13-12-3-1-2-4-14(12)23-19(13)20(24(15)18)11-5-6-16-17(7-11)28-10-27-16/h1-7,15,20,23H,8-10H2,(H,22,26)/t15-,20-/m1/s1

IUPAC

(2R,8R)-2-(1,3-benzodioxol-5-yl)-3,6,17-triazatetracyclo[8.7.0.0^{3,8}.0^{11,16}]heptadeca-1(10),11,13,15-tetraene-4,7-dione

Product Data

Storage Temperature

+4°C

Shipping Temperature

+20°C

Country of Origin

GERMANY

Product Type

Native/Parent

Product Format

Neat
Dr. Ehrenstorfer

Why work with us?

Since 1975, Dr. Ehrenstorfer has led the way in producing pesticide reference standards. Today, our portfolio is constantly expanding to adapt to changing regulations and technology, as we support your need for high-quality reference materials for food and environmental analysis.


We are passionate about supporting your science for a safer world. Our products are produced to the highest quality, with all analytical measurements performed under our ISO/IEC 17025 scope of accreditation and a leading product range manufactured according to our ISO 17034 accreditation. We use the most advanced analytical techniques to characterise our reference materials, so that you can rely on the scientific integrity of the data contained in your Certificate of Analysis.


Explore our range
Punchout session timeout warning

Your punchout session will expire in1 min59 sec.

Select "Continue session" to extend your session.