EVANS MONO THIO GLY CER OL NEUTRAL WATER-SOLUBLE THIOL CH 2 [0H)CH(0H]CH 2 SH Consider for: POLYMERS PHARMACEUTICALS INTERMEDIATE PROF>ERTIES
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Mol. W t :
108.2
B.P.:
118°Cat5mm
Sp. Gr.:
1.295 at 14.4eC
Color:
SPECIF ICATIONS Water-white
Assay (Aqueous soin.)
90%
Stability:
Excellent
1-Thioglycerol is an excellent reducing agent and can serve as a useful additive to polymerization as well as stabilization of acrylonitrile polymers and co-polymers. It also has considerable poten tial as a stabilizer in various types of pharma ceuticals. Data sheet and samples available on request.
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seabed authority at the expense of nodule cobalt sales. But even then, the study says, the economic activity value would remain and would be a value to the U.S. to the extent that U.S. firms were engaged in the production. At present, four U.S. companies are active in the field. Kennecott Copper and Ocean Resources are engaged in joint ventures with foreign firms. Deepsea Ventures and Howard Hughes' Summa Corp. are active on their own (C&EN, Feb. 11, 1974, page 19). D
Clinical chemists form isotopes group In a recent move, the American Asso ciation of Clinical Chemists (AACC) has formed an ad hoc National Commit tee on Radionuclides and Radioassay in Clinical Chemistry. The role of this committee, according to chairman Jacob Kream of Montefiore Hospital and Medical Center in New York City, will be a strictly advisory one, and he doesn't see the committee's developing into an accrediting body such as the National Registry of Clinical Chemists. There are three basic functions of the new committee, Dr. Kream says. The first is to safeguard the right of pro fessional clinical chemists to use radio active materials for in vitro radioassay procedures, for example, radioimmuno assay, nonimmune competitive protein binding assay, and double isotope de rivative procedures. In addition, the committee will strive to ensure these same rights for clinical chemists in volved in the analysis of body fluids and excreta for nuclides and radio labeled compounds in in vivo studies (radiobioassay). Thus, the committee will be doing a little lobbying, since, says Kream, it will "involve itself" with current and proposed federal, state, and local legislation touching these areas, particularly when laws tend to restrict the activities of clinical chemists work ing in radioassay. A second function of the committee is to tie together existing expertise, in formation and educational programs on radioassay and radiobioassay, as well as data on radiation hazards, handling of isotopes, and standards for purity of labeled compounds used in clinical studies. The third function is to collect and circulate information on current and pending federal, state, and local laws governing the use of radioactive ma terials and how these regulations apply to individual reagents and commercially available components and kits. The committee is apparently not a new idea. It was authorized by a resolu tion of the board of AACC about a year ago but has just recently been imple mented. Its official home will be in the AACC national office in Washington, D.C., where it will draw on the associa tion for staff functions. G
Aminoacetic Acid N.F. and tech grades FOOD · COSMETICS PHARMACEUTICALS INDUSTRIAL USES G-V PROCESS N. F. quality — variation
of
properties also available to suit your needs. Tech grade — at substantial savings for industrial uses. Availability — immediate ship ment from fresh stock. Tech service — direct from the only U.S. producer, the en cyclopedia for Glycine. Phone us collect for information on physical or chemical proper ties. Anytime. Bulletins avail able for special areas of use. WRITE OR PHONE COLLECT
chattem chemicals DEPT. CEN 1715 W. 38th ST. CHATTANOOGA, TENN. 37409 PHONE 615/821-4571 CIRCLE 3 O N READER SERVICE CARD
Jan. 20, 1975 C&EN
33
