anthra-comb. form

Stress is usually determined by a subsequent element and vowels may be reduced accordingly.

Forms: before a vowel anthr-.

Origin: Formed within English by clipping or shortening; originally modelled on a German lexical item. Etymon: anthracene n.

Etymology: < anthra- (in anthracene n.), originally after German anthra- (formations in which are found from the first half of the 19th cent., apparently earliest in Anthranilsäure : see anthranilic adj.).Found in a number of chemical compound names exemplified below, from the first half of the 19th cent., earliest (and chiefly) in adaptations of German terms. Formations within English are found from the late 19th cent.

Chemistry.

Forming names of compounds, ions, etc., which are derivatives of anthracene or anthraquinone.

anthraflavate n.

Brit.

/ˌanθrəˈfleɪveɪt/

U.S.

/ˌænθrəˈfleɪˌveɪt/

[ < anthra- comb. form + classical Latin flāvus yellow (see flavo- comb. form) + -ate suffix¹] a salt, or the anion, of anthraflavic acid.

ΚΠ

1871 Chem. News 10 Nov. 226/2 Baric anthraflavate was prepared from the commercial alizarine by boiling it with baryta water.

1902 Jrnl. Soc. Chem. Industry 31 Mar. 403/1 The mother liquor is concentrated to 20° B. and the sodium anthraflavate crystallised.

2010 Spectrochimica Acta A. 75 481/1 The interaction acceptor-donor was established through OH⋯O bridges between metal coordinate water and the oxygen atoms from the anthraflavate ions.

anthraflavic acid n.

Brit.

/ˌanθrəfleɪvɪk ˈasɪd/

U.S.

/ˈˌænθrəˌfleɪvɪk ˈæsəd/

[ < anthra- comb. form + classical Latin flāvus yellow (see flavo- comb. form) + -ic suffix + acid n.] a bright yellow crystalline acidic compound, often formed in the synthesis of alizarin with which it is isomeric.Systematic name: 2,6-dihydroxyanthraquinone; C₁₄H₈O₄.

ΚΠ

1871 Chem. News 4 Aug. 59/1 Valuable papers on alizarine have been published by Perkins and Schunck. The latter has described a new acid—the anthraflavic—which is formed in the artificial preparation of alizarine.

1965 U.S. Patent 3,171,711 8 The reduction catalyst is the cobalt complex of anthraflavic acid.

1999 Dict. Substances & Effects (Royal Soc. Chem.) (ed. 2) I. 330 Anthraflavic acid is a specific inducer of P450 I proteins in rats and..may act as a co-carcinogen.

anthraflavone

Brit.

/ˌanθrəˈfleɪvəʊn/

U.S.

/ˌænθrəˈfleɪˌvoʊn/

[ < anthra- comb. form + classical Latin flāvus yellow (see flavo- comb. form) + -one suffix, after German Anthraflavon (L. von Barth & C. Senhofer 1873, in Sitzungsberichte der Kaiserl. Akad. der Wiss.: Math.-Naturwiss. Classe 68 179)] now rare a yellow crystalline compound which is a dimer of methylanthraquinone and is used in making dyes.Systematic name: 2,2′-dianthraquinonylethene; C₃₀H₁₆O₄.

ΚΠ

1874 Jrnl. Chem. Soc. 27 267 The potassium salt was prepared by dissolving anthraflavone in potassium carbonate.

1953 Proc. Indian Acad. Sci. A. 38 164 Part of the Anthraflavone thus cleaved at the ethylene bridge during reduction.

2003 U.S. Patent 20,030,082,101 9/2 Additional examples of quinines, both hydroxylated and non-hydroxylated, include but are not limited to..anthraflavone, [etc.].

† anthraphenol n. Obsolete = anthranol n.

ΚΠ

1877 H. Watts Fownes's Man. Chem. (ed. 12) II. 585 Anthraphenols, C₁₄H₁₀O=C₁₄H₉(OH).—Of these bodies there are two metameric modifications.

1902 R. A. Witthaus Med. Student's Man. Chem. (ed. 5) 443 Anthraphenols.—Three monophenols, C₁₄H₉(OH), are known.

anthrapurpurin n.

Brit.

/ˌanθrəˈpəːpjᵿrɪn/

U.S.

/ˌænθrəˈpərp(j)ərən/

[ < anthra- comb. form + purpurin n.; compare German Anthrapurpurin (1873; < English)] an orange solid obtained from artificial alizarin and used (esp. formerly) as a dye and histological stain.Systematic name: 1,2,7-trihydroxyanthraquinone; C₁₄H₈O₅.

ΚΠ

1873 Nature 6 Feb. 276/2 Diary Thursday, February 6... Chemical Society, at 8.—On Anthrapurpurin: W. H. Perkin.

1937 Thorpe's Dict. Appl. Chem. (ed. 4) I. 225/2 Anthrapurpurin..gives reds, purples, and blacks on alumina, chrome, and iron mordants respectively.

1974 C. F. A. Culling Handbk. Histopathological & Histochemical Techniques (ed. 3) xx. 471 The use of the anthraquinone dyes (purpurin, anthrapurpurin) is usually confined to the demonstration of bones in embryos.

This entry has been updated (OED Third Edition, March 2016; most recently modified version published online December 2021).

单词	anthra-
释义	anthra-comb. form Stress is usually determined by a subsequent element and vowels may be reduced accordingly. Forms: before a vowel anthr-. Origin: Formed within English by clipping or shortening; originally modelled on a German lexical item. Etymon: anthracene n. Etymology: < anthra- (in anthracene n.), originally after German anthra- (formations in which are found from the first half of the 19th cent., apparently earliest in Anthranilsäure : see anthranilic adj.).Found in a number of chemical compound names exemplified below, from the first half of the 19th cent., earliest (and chiefly) in adaptations of German terms. Formations within English are found from the late 19th cent. Chemistry. Forming names of compounds, ions, etc., which are derivatives of anthracene or anthraquinone. anthraflavate n. Brit. /ˌanθrəˈfleɪveɪt/ , U.S. /ˌænθrəˈfleɪˌveɪt/ [ < anthra- comb. form + classical Latin flāvus yellow (see flavo- comb. form) + -ate suffix¹] a salt, or the anion, of anthraflavic acid. ΚΠ 1871 Chem. News 10 Nov. 226/2 Baric anthraflavate was prepared from the commercial alizarine by boiling it with baryta water. 1902 Jrnl. Soc. Chem. Industry 31 Mar. 403/1 The mother liquor is concentrated to 20° B. and the sodium anthraflavate crystallised. 2010 Spectrochimica Acta A. 75 481/1 The interaction acceptor-donor was established through OH⋯O bridges between metal coordinate water and the oxygen atoms from the anthraflavate ions. anthraflavic acid n. Brit. /ˌanθrəfleɪvɪk ˈasɪd/ , U.S. /ˈˌænθrəˌfleɪvɪk ˈæsəd/ [ < anthra- comb. form + classical Latin flāvus yellow (see flavo- comb. form) + -ic suffix + acid n.] a bright yellow crystalline acidic compound, often formed in the synthesis of alizarin with which it is isomeric.Systematic name: 2,6-dihydroxyanthraquinone; C₁₄H₈O₄. ΚΠ 1871 Chem. News 4 Aug. 59/1 Valuable papers on alizarine have been published by Perkins and Schunck. The latter has described a new acid—the anthraflavic—which is formed in the artificial preparation of alizarine. 1965 U.S. Patent 3,171,711 8 The reduction catalyst is the cobalt complex of anthraflavic acid. 1999 Dict. Substances & Effects (Royal Soc. Chem.) (ed. 2) I. 330 Anthraflavic acid is a specific inducer of P450 I proteins in rats and..may act as a co-carcinogen. anthraflavone Brit. /ˌanθrəˈfleɪvəʊn/ , U.S. /ˌænθrəˈfleɪˌvoʊn/ [ < anthra- comb. form + classical Latin flāvus yellow (see flavo- comb. form) + -one suffix, after German Anthraflavon (L. von Barth & C. Senhofer 1873, in Sitzungsberichte der Kaiserl. Akad. der Wiss.: Math.-Naturwiss. Classe 68 179)] now rare a yellow crystalline compound which is a dimer of methylanthraquinone and is used in making dyes.Systematic name: 2,2′-dianthraquinonylethene; C₃₀H₁₆O₄. ΚΠ 1874 Jrnl. Chem. Soc. 27 267 The potassium salt was prepared by dissolving anthraflavone in potassium carbonate. 1953 Proc. Indian Acad. Sci. A. 38 164 Part of the Anthraflavone thus cleaved at the ethylene bridge during reduction. 2003 U.S. Patent 20,030,082,101 9/2 Additional examples of quinines, both hydroxylated and non-hydroxylated, include but are not limited to..anthraflavone, [etc.]. † anthraphenol n. Obsolete = anthranol n. ΚΠ 1877 H. Watts Fownes's Man. Chem. (ed. 12) II. 585 Anthraphenols, C₁₄H₁₀O=C₁₄H₉(OH).—Of these bodies there are two metameric modifications. 1902 R. A. Witthaus Med. Student's Man. Chem. (ed. 5) 443 Anthraphenols.—Three monophenols, C₁₄H₉(OH), are known. anthrapurpurin n. Brit. /ˌanθrəˈpəːpjᵿrɪn/ , U.S. /ˌænθrəˈpərp(j)ərən/ [ < anthra- comb. form + purpurin n.; compare German Anthrapurpurin (1873; < English)] an orange solid obtained from artificial alizarin and used (esp. formerly) as a dye and histological stain.Systematic name: 1,2,7-trihydroxyanthraquinone; C₁₄H₈O₅. ΚΠ 1873 Nature 6 Feb. 276/2 Diary Thursday, February 6... Chemical Society, at 8.—On Anthrapurpurin: W. H. Perkin. 1937 Thorpe's Dict. Appl. Chem. (ed. 4) I. 225/2 Anthrapurpurin..gives reds, purples, and blacks on alumina, chrome, and iron mordants respectively. 1974 C. F. A. Culling Handbk. Histopathological & Histochemical Techniques (ed. 3) xx. 471 The use of the anthraquinone dyes (purpurin, anthrapurpurin) is usually confined to the demonstration of bones in embryos. This entry has been updated (OED Third Edition, March 2016; most recently modified version published online December 2021). < comb. form1871
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