Merck index

MRCK Merck Co., Inc., USA descriptions of chemicals, drugs, agricultural and natural products sub- stance, numeric 10000 Merck Index (encyclo- pedia) STN semian- nually wuw.cas.org/ ONLINE/ BBSS/ mrcfess.htrnl... 

One final thought. Strike found that there are a lot of companies that do not sell sodium bisulfite (NaHSOa). In fact, a lot of companies list sodium bisulfite in their catalogs but tell the reader to see sodium metabisulfite instead because that is the only form of this compound they carry. In other words, a lot of companies sell sodium metabisulfite (NaaSaOs) as an acceptable alternative to the other. The Merck Index even says about sodium bisulfite that the [sodium] bisulfite of commerce consists chiefly of sodium metabisulfite, Nd2S20s, and for all practical purposes possesses the same properties as the true bisulfite". What this meant to Strike was that metabisulfite would work just as well. So some was purchased and tried. And it really does work just the samel... 

Nitroethane and 1-(3,4 methylenedioxy) 2- nitropropane This method of producing the above mentioned nitro compounds is by far the best Ritter has come across yet The problem with standard nitroethane synthesis is that the -NO2 source most commonly used is silver nitrite (a la Merck Index citing). Needless to say, this is going to be an expensive compound to make as it is not available commercially but must be synthesized from costly silver nitrate. The other methods mentioned in Vogels 5th masterpiece... 

USP XXII, 22th rev., 1990, The U.S. Pharmacopoeial Convention, Rockville, Md. Merck Index, 11th ed., Merck, Rahway, N.J., 1989. 

OtherD t b ses. Available from different vendors (Table 8). For example, the researcher can obtain physical properties by usiag the Merck Index Online or the Dictionary of Organic Compounds available by Chapman and Hall Chemical Database. In DIALOG, numeric databases are collected under the name of CHEMPROP. 

The Merck Index Online Merck Co., Inc. Dialog, CIS, BRS, the online counterpart to the printed 11th ed. of The Merck Index, records contain molecular formulas and weights, systematic... 

The US. Pharmacopeia (USP XXII) or National Formula (NFXVII) (20) also provide a similar description however, the peroxide value is not defined (Table 9). These specifications are also given in the Handbook of Pharmaceutical Excipients (HPE), pubhshed jointiy by the American Pharmaceutical Association and The Pharmaceutical Society of Great Britain (21), which defines lecithins both from plants and eggs. The Merck Index (22) specifies a slightiy lower acid value. The Japanese Monograph (ISCI-II) (23) specifies a slightiy lower acetone-insoluble matter and a lower heavy-metal content. 

Merck Index, 11th ed., Merck Corp., Rahway, N.J., 1989. 

The natural resins described here are those that have been mentioned in technical Hterature they can be identified by CAS Registry Numbers and Merck Index numbers (1). 

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