Bluesheet Contents     PDF version

File Description [top]

The Chapman & Hall Chemical Database (CHCD), formerly HEILBRON, the chemical properties database, represents the complete text of several chemical dictionaries from Chapman and Hall. CHCD is a source database of chemical identification, physical-chemical properties, use, hazard, and key reference data to the world's more important chemical substances, as selected by a panel of experts. CHCD provides chemical substance identification through searching physical and/or chemical properties, compound variants, derivative names, synonyms, CAS^® Registry numbers, molecular formulae and molecular weight, biological source statements, use/importance data, melting point, freezing point, boiling point, solubility, relative density, optical rotation, and dissociation constants, as well as providing suppliers and toxicity data.

Subject Coverage [top]

• Fundamental acyclic, alicyclic, aromatic and heterocyclic organic compounds.
• Comprehensive coverage for natural products including alkaloids, amino acids, antibiotics, carbohydrates, flavonoids, lichen acids, lignans, nucleosides, peptides, steroids, tannins, and terpenoids.
• Pharmaceuticals including marketed drugs and compounds in clinical trials.
• Pharmaceuticals including marketed drugs and compounds in clinical trials.
• Analytical reagents: biological status, extractants, indicators, nmr shift reagents, resolving agents.
• Industrial chemicals, synthetic reagents and laboratory solvents.
• A wide range of inorganic and organometallic compounds, covering coordination complexes and cluster compounds.
• Compounds with unusual structural, physical or chemical properties.

Sources [top]

CHCD is the online version of the database used to produce the Dictionary of Organic Compounds - 5th Edition, (DOC 5) and the Dictionary of Organometallic Compounds (DMC) and supplements. The contents of the database are prepared from the primary and secondary chemical literature under the supervision of a panel of subject experts. Material from the following source books is also included: Carbohydrates, Amino Acids and Peptides, the Dictionary of Antibiotics and Related Compounds, and the Dictionary of Organophosphorus Compounds.

Print Counterparts [top]

• CHCD is the online version of the database used to produce:
• Amino Acids and Peptides (Chapman & Hall Chemistry Sourcebook)
• Carbohydrates (Chapman & Hall Chemistry Sourcebook)
• Dictionary of Analytical Reagents
• Dictionary of Alkaloids
• Dictionary of Antibiotics and Related Substances
• Dictionary of Drugs
• Dictionary of Inorganic Compounds
• Dictionary of Natural Products
• Dictionary of Organic Compounds
• Dictionary of Organometallic Compounds
• Dictionary of Organophosphorus Compounds
• Dictionary of Pharmacological Agents
• Dictionary of Steroids
• Dictionary of Terpenoids
• The Lipid Handbook, 2nd Edition
• Phytochemical Dictionary of the Leguminosae

Dialog File Data [top]

Database Content [top]

• Directories

Document Types Indexed [top]

• Chemical Substances

Geographic Coverage [top]

• International

Geographic Restrictions [top]

• None

Special Features [top]

• ERA Available
• Graduate Education Program
• KWIC and HILIGHT Available
• MAP Available

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 Chapman and Hall Chemical Database (CHCD) is copyrighted by Chapman and Hall Ltd. All customers using the CHCD Online are subject to the following nine points and conditions as prescribed by Chapman and Hall Ltd.

1. That all data retrieved from the CHCD is the copyright of Chapman and Hall Ltd.

2. That any searches against the CHCD will be conducted by the Customer's employees for the customer's internal use only, and the results will not be disclosed or transmitted to any third party, except as permitted in paragraphs 4-7 below.

3. No part of the CHCD may be copied in the machine-readable, hard copy, or any other form, or made available for the use of any third party without the permission of Chapman and Hall Ltd., except as provided by Dialog's current Terms and Conditions.

4. That, in the event that the customer wishes to conduct searches on behalf of third parties then the customer will notify Chapman and Hall Ltd. to this effect confirming that all the conditions of these provisions will be adhered to. Searching for third parties will not be permitted until permission has been confirmed by Chapman and Hall Ltd. in writing.

5. Any search carried out for a third party will be performed directly by the customer's employees only and will be solely for that third party.

6. Any search conducted for a third party will be solely for that third party, who will undertake that the results of such a search are for their own internal use only.

7. Whenever the customer obtains information from the CHCD for a third party, the customer shall make an acknowledgment to the third party of the ownership by Chapman and Hall Ltd. of the data concerned and all rights therein.

8. Although this database was formulated with a reasonable standard of care and in conformance to professional standards in the field, Chapman and Hall Ltd. makes no representations or warranties, express or implied, including but not limited to any implied warranty of merchantability or fitness for a particular purpose with respect to CHCD and specifically disclaims all such representations and warranties. Chapman and Hall Ltd. shall not in any circumstances be liable or responsible for the completeness or accuracy of any data comprised in the CHCD nor for the transmission of such data and will not be liable for any indirect consequential or economic loss or loss of profit resulting directly or indirectly from the use by the customer of such data or from the performance or non-performance by Chapman and Hall Ltd. of its obligations hereunder.

9. These terms and conditions are to be governed by English Law. Any questions concerning the interpretation of any of these conditions should be referred to Scientific Data Division, Chapman and Hall, 2-6 Boundary Row, London, SE1 8HN.

SAMPLE RECORD [top]

FORMAT 5 AND 9 FULL RECORD

FORMAT 2, 3, 4 AND 7 INDIVIDUAL COMPOUND

BASIC INDEX [top]

¹ Searchable in the Basic Index and in the Additional Indexes.

² All chemical names are indexed as complete phrases, individual words, and chemically significant segments of words. Use /FW to retrict retrieval to the complete term, e.g., S ETHANE/FW to only select ethane as a single word rather than as a segment of a larger chemical term, such as trichloroethane.

³ The Text field includes Compound Type, Hazard Information, General Information, Source of Substance, Use/Importance, Miscellaneous,and Physical State.

⁴ Terms can be qualified to any one of three levels using one of the following suffixes: /MAIN to restrict retrieval to the Main CHC substance information; /VAR to restrict retrieval to the Compound Variant substance information, and /DERIV to restrict retrieval to the Derivative substance information (e.g., MP=24/VAR retrieves compound variant substances with a melting point of 24).

⁵ Also /DF.

ADDITIONAL INDEXES [top]

⁶ Numeric values can be entered in several different ways: directly as a number, i.e., S BP=100.0; in exponential notation, i.e., S BP=1E2. Letter abbreviations are also available: K for thousand, M for million, B for billion, e.g., S BP=0.5K:1.0K. To search a range of values, use a colon between starting and ending value, e.g., S BP=78:79 OR use numeric operators (>, <, >=, and <=), e.g., S 78<=BP<=79.

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: Chapman and Hall Chemical Database[303]
Cost per DialUnit:                 $4.50
Cost per minute:                   $1.62
Rank Elements                      $0.00

Format    Types   Prints
     1    $0.00    $0.00
     2    $4.50    $4.50
     3    $4.50    $4.50
     4    $4.50    $4.50
     5    $9.00    $9.00
     6    $0.00    $0.00
     7    $4.50    $4.50
     8    $0.00    $0.00
     9    $8.00    $8.00
KWIC95    $2.00       NA
KWIC96    $2.00       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