Detail of "19721-22-3"

MSDS Download
CAS Number:
19721-22-3
Name:
1-Propanol, 3-mercapto-
Superlist Name:
3-Mercapto-1-propanol
Molecular Structure:
Formula:
C₃H₈OS
Molecular Weight:
92.16
Synonyms:
1-Mercapto-3-propanol;3-Hydroxypropanethiol;3-Hydroxypropyl mercaptan;3-Mercapto-1-propanol;3-Mercaptopropanol;NSC 46437;
EINECS:
264-572-5
Density:
1.028 g/cm³
Boiling Point:
186.2 °C at 760 mmHg
Flash Point:
66.4 °C
Appearance:
Clear colorless liquid
Hazard Symbols:
T
Risk Codes:
24/25
Safety:
28-36/37-45 Details
Transport Information:
UN 2810 6.1/PG 3

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Low-molecular-weight vinyl chloride polymers: Low-molecular-weight vinyl chloride polymers. Nakanishi, Kakusaburo (Ryonichi K. K., Japan). Japan. Kokai JP 52072787 17 Jun 1977 Showa, 4 pp. (Japanese). (Japan). CODEN: JKXXAF. CLASS: IC: C08F014-06. APPLICATION: JP 75-149055 16 Dec 1975. DOCUMENT TYPE: Patent CA Section: 36 (Plastics Manufacture and Processing) Vinyl chloride (I) was polymd. in the presence of 2-mercaptoethanol (II) [60-24-2] or 3-mercaptopropanol [19721-22-3] (a chain-transfer agent) to prep. low.-mol.-wt. PVC [9002-86-2] which had low contents of residual I and was used to prep. colorless moldings. Thus, a mixt. of 100 kg I, 65 g partially sapond. poly(vinyl alc.), a radical initiator, and II was polymd. at 58.degree. for 12 h to prep. PVC contg. 43 ppm I.

2,2-Dimethyl-1,3-oxathiane 3,3-dioxide: a g-hydroxypropyl anion equivalent: 2,2-Dimethyl-1,3-oxathiane 3,3-dioxide: a g-hydroxypropyl anion equivalent.Some chemicals with cas registry numbers like 19721-22-3 are also used. Fuji, Kaoru; Usami, Yoshihide; Kiryu, Yoshimitsu; Node, Manabu (Inst. Chem. Res., Kyoto Univ., Uji 611, Japan). Synthesis, (9), 852-8 (English) 1992. CODEN: SYNTBF. ISSN: 0039-7881. DOCUMENT TYPE: Journal CA Section: 28 (Heterocyclic Compounds (More Than One Hetero Atom)) Section cross-reference(s): 30 The reaction of 4-lithio-2,2-dimethyl-1,3-oxathiane 3,3-dioxide (I) with various electrophiles is presented.Several reagents such as 19721-22-3 is used here. Acylation of the anion provided labile 4-acyl-2,2-dimethyl-1,3-oxathiane 3,3-dioxides which underwent desulfonation with silica gel to produce g-hydroxy ketones with three carbon unit elongation. Thus, 4-lithio-2,2-dimethyl-1,3-oxathiane 3,3-dioxide was shown to be a useful synthetic equiv. of a g-hydroxypropyl anion. Me esters proved to be the best acylating agents in this reaction. Synthetic utility of this carbon chain elongation was illustrated by the synthesis of dl-lanceol and dl-dihydrojasmone. ..