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File Description [top]

Derwent Chemistry Resource (DCR) offers structure searching and various other substance identification and indexing data of the chemical structures indexed from update 199916 forward within Derwent World Patents Index^® (DWPI) (Files 350, 351, and 352) and the Derwent Drug File (DDF) (Files 377, 376, 912, and 913).

For patents included in DWPI, DCR includes:

• All claimed compounds.
• At least the main (best) example. If there are few claimed compounds, more examples are selected.
• For compounds outside the claims, priority of selection is given to real compounds (i.e., those with good supporting physical and/or biological data).
• Where compounds are selected from a range of examples, those that best illustrate the structural diversity of patent coverage are selected.

Tips [top]

Subject Coverage [top]

Derwent Chemistry Resource includes biological, organic, organometallic and inorganic compounds

Sources [top]

Derwent Chemistry Resource cites chemical structures from the more than one million patents classified in Derwent Sections B, C and E (Pharmaceuticals, Agrochemicals and General Chemistry).

Print Counterparts [top]

• None

Dialog File Data [top]

Related Search Aids [top]

For addditional information about Chemical Structure searching available in this file, please see

Document Types Indexed [top]

• Chemical Substances

Geographic Coverage [top]

• International

Geographic Restrictions [top]

• None

Special Features [top]

• ERA Available
• KWIC and HILIGHT Available
• DIALOG Alert Available
• Image Output Available
• Chemical Structure Searching enabled

DialIndex/OneSearch Categories [top]

Contact [top]

Terms and Conditions [top]

For Dialog's Redistribution and Archive Policy, enter HELP ERA online. The following terms and conditions also apply.

The online use by customers of the databases (Derwent databases) of Thomson Scientific and all data obtained from Derwent databases is subject to the following terms and conditions.

1. All data obtained from Derwent databases and all copyright therein is and shall at all times remain the property of Derwent.

2. All data obtained from Derwent databases are to be treated as strictly confidential and may not be copied, duplicated, translated into any language or in any way reproduced without the prior written consent of Derwent, except for internal use only non-subscribers may redistribute Derwent data obtained from the DIALOG service in accordance with Dialog's ERA redistribution program. Redistribution for subscribers within sites covered by a Derwent subscription is already a benefit of that subscription.

3. The customer undertakes and agrees that:

(a) any searches against Derwent databases will be conducted by the customer's employees for the customer's internal use only, and the results of such searches will not be disclosed or transmitted to any third party, except as permitted in paragraphs 3(b) - 3(g) below;

(b) if the customer wishes to conduct searches on behalf of a third party, the customer will notify Derwent and obtain Derwent's written consent; searches on behalf of a third party will not be permitted unless and until permission has been granted by Thomson Scientific in writing;

(c) any search conducted on behalf of a third party must be performed directly by the customer's employees and will be solely for that third party;

(d) prior to any search being conducted on behalf of a third party the customer will ensure that the third party undertakes to the customer and Derwent that the results of such search are for that third party's own internal use only;

(e) whenever the customer obtains data from Derwent databases for a third party, the customer shall notify that third party in writing of the ownership by Thomson Scientific of the data concerned and all copyright therein;

(f) copies of online and offline prints must be conspicuously marked:

FOR INTERNAL USE ONLY (c) THOMSON SCIENTIFIC 2005;

(g) the term "third party" does not refer to a patent issuing authority, such as a national Patent Office, where data obtained from Derwent databases is required by law or regulation in the normal conduct of the patent issuing authority's day-to-day business.

4. Output from online searches may be stored temporarily in electronic form for a maximum period of three months for the purpose of editing or reformatting the search results. For longer term storage, a Downloading Agreement with Derwent must be completed and the appropriate fees paid.

5. In the event of a breach by the customer, its employees or any third party, of any of these terms and conditions Derwent shall be entitled to terminate the customer's right of access to Derwent databases immediately without notice.

6. Derwent shall not in any circumstances be liable or responsible for the completeness or accuracy of any data comprised in the Derwent databases nor the transmission of such data and will not be liable for any indirect, consequential or economic loss of profit resulting directly or indirectly from the use by the customer or any third party of such data.

7. The customer will not assign any of its rights under these terms and conditions in whole or in part without the prior written consent of Derwent.

8. The invalidity, illegality or unenforceability in whole or in part of any of these terms and conditions shall not affect the validity, legality, and enforceability of the remaining terms and conditions.

9. These terms and conditions shall override and prevail over any other terms and conditions in any document or other communication used by the customer in effecting its subscription to the Derwent databases.*

10. These terms and conditions shall be governed by and construed in accordance with English law.

*For the purposes of this provision, this is in reference to direct agreement between Thomson Scientific and the Customer organization.

Any questions concerning the interpretation of any of these conditions should be referred to the nearest Thomson Scientific office for clarification.

SAMPLE RECORD [top]

	DIALOG(R)File 355: Derwent Chemistry Resource
	(c) 2005 Thomson Derwent. All rights reserved.
	0000102080
/NA, NA=	Preferred Name:               NITRAZEPAM
DN=	DCR Number:                   102080
XD=	External DCR Number:          102080-0-0-0
CN=	Specific Compound Number:     R01158; R07594
ID=	DDF Structure ID:             NITRAZPAM
/NA, NA=	Systematic Chemical Name:
	7-Nitro-5-phenyl-1,3-dihydro-benzo[e][1,4]diazepin-2-one
/SY, SY=	Synonyms:                     ALODORM; APODORM; AREM; ATEMPOL; BENZALIN;
	CALSMIN; CERSON; DESCANSOL; DORMICUM; DORMIGEN; DORMO-PUREN;
	DUMOLID; EATAN-N; EPIBENZALIN; EPINELBON; EUNOCTIN; GERSON;
	HIPNAX; HIPNOTAB; HIPSAL; HIRUSUKAMIN; HUBERPLEX; HYPNOTEX;
	HYPNOTIN; IBROVEK; IMADORM; IMESON; INSOMA; INSOMIN; IPERSED;
	IPNOZEM; LA-1; LA-I; LAGAZEPAM; LIVETAN; LYLADORM; MAGADON;
	MEGADON; MITIDIN; MODADAN; MOGADAN; MOGADON; MP-NITRAZEPAM;
	NELBON; NELMAT; NELUROLEN; NEMNAMINE; NEOZEPAM; NEUCHLONIC;
	NEUMAX; NIDIAZEPON; NIPAM; NITEPAM; NITRADORM; NITRADOS; NITRAVET
	; NITRAX; NITRAZEPAM; NITRAZEPAN; NITRAZEPHAR; NITRAZEPOL;
	NITREDON; NITREEZE; NITRENPAX; NITRODIAZEPAM; NOCTEM; NOCTENE;
	NOVANOX; NSC-58775; NUMBON; ONIREMA; ORMODON; PACIDRIM; PACISYN;
	PADOR; PAXADORM; PAXISYN; PELSON; PELSONFILINA; PERSOPIR;
	PROSONNO; QUILL; RADEDORM; RELACT; RELAX; REMNOS; RO-4-5360;
	RO-45360; RO-53059; S-2000; SCHLAFTABLETTEN-23; SERENEX;
	SINDEPRES; SOLIUM; SOMITRAN; SOMNASED; SOMNIBEL-N; SOMNIPAR;
	SOMNITE; SONEBON; SONIPAN; SONNOLIN; SONOTRAT; SUREM; TAZEPAM;
	TRAZENIN; TRI; UNISOMMNIA; UNISOMNIA
MW=	Molecular Weight:             281.2699
/EC, EC=, MF=	Molecular Formula (Orig):     C15 H11 N3 O3
MF=	Molecular Formula (Comp):     C15H11N3O3
	Structured Molecular Formula
SF=	Fragment and Multiplier:  C15H11N3O3 1
NG=	Number of Fragments:      1
TF=	Total Fragments:          1
RR=	Ring Index Numbers:           01829
DR=	Derwent RN:                   1158
/DE	Substance Descriptor:         BENZODIAZEPINES
	DDF Descriptors
/DE	Activity:       SEDATIVES
/DE	Substructure:   BENZODIAZEPINE; NITROARENE; BH-LINKED-CC; LACTAM
/DE	Mechanism:      BENZODIAZEPINE-AGONIST.; GABAMINERGIC
	GS displays the graphic structure when DialogLink 5.0 is used.

BASIC INDEX [top]

¹ Also /DF.

² Searchable in the Basic Index and in the Additional Indexes.

ADDITIONAL INDEXES [top]

³ The DCR number may be mapped to Derwent World Patents Index, files 350, 351 and 352.

⁴ Use FS=DDF to restrict to those substances that are in the Derwent Drug File. All records are in FS=DWPI.

⁵ The graphic structure can be displayed using DialogLink 5.0. All other interfaces currently display the text equivalent of the .MOL file. The GS display code can be combined with any user-defined format or any pre-defined format, except Format 1.

LIMIT [top]

SORT [top]

RANK [top]

MAP [top]

USER-DEFINED FORMAT OPTIONS [top]

PREDEFINED FORMAT OPTIONS [top]

DIRECT RECORD ACCESS [top]

Rates [top]

Rates For File: Derwent Chemistry Resource[355]

                                Standard  Subscrib
Cost per DialUnit:                $19.25    $21.20
Cost per Minute:                   $4.37     $4.80
Report Elements                    $0.75     $0.82
Rank Elements                      $0.05     $0.06
ALERT (default)                   $49.00    $54.00
ALERT (Monthly)                  $190.00   $210.00
ALERT (Weekly)                    $49.00    $54.00
ALERT (Calendar weekly)        *  $49.00    $54.00
* = custom scheduled Alerts only

        <<  Standard  >>  << Subscriber >>
Format    Types   Prints    Types   Prints
     1    $0.00    $0.80    $0.00    $0.89
     2    $2.00    $2.40    $2.20    $2.60
     3    $2.00    $2.40    $2.20    $2.60
     4    $2.00    $2.40    $2.20    $2.60
     5    $2.00    $2.40    $2.20    $2.60
     6    $0.00    $0.80    $0.00    $0.89
     7    $2.00    $2.40    $2.20    $2.60
     8    $2.00    $2.40    $2.20    $2.60
     9    $2.00    $2.40    $2.20    $2.60
    19    $2.00    $2.40    $2.20    $2.60
KWIC95    $0.00       NA    $0.00       NA
KWIC96    $0.00       NA    $0.00       NA

REDIST/COPY Multiplier Table:

      Range      Multiplier
        1-2       1.00
       3-25       1.50
     26-100       3.00
    101-200       4.00
    201-500       6.00
   501-1000       8.00
 1001 or more    10.00

ARCHIVE Multiplier Table:

      Range      Multiplier
       1-25       1.50
     26-200       3.00
    201-500       6.00
   501-1000       8.00
 1001 or more    10.00
Standard = rates for all users except those in Japan

Subscriber = rates for users in Japan

---------------------------------
A charge of $20.00 applies to each CSS (Chemical Structure Search)
whether searching in one database or across multiple databases.  The
standard output charges for each database apply to any documents
retrieved.